Marine growth prevention aid for a water pump

Abstract

The application relates to an auxiliary device for preventing marine organisms of a water pump, the water pump comprising a pump body and a water inlet horn, the horn mouth of the water inlet horn being vertically downward, the auxiliary device comprising a bottom plate, a lifting rod and a fixing assembly, at least one horizontal fixing plate being arranged on the outer side wall of the pump body, a first guide hole being arranged on the horizontal fixing plate, a horizontal support plate being arranged on the outer side wall of the water inlet horn, a second guide hole being arranged on the horizontal support plate, the bottom plate being located directly below the horn mouth, one end of the lifting rod being connected with the bottom plate, the other end of the lifting rod sequentially penetrating through the second guide hole and the first guide hole, and the fixing assembly being installed on a fixing structure on the water surface or underwater. Compared with the prior art, after the application is used, the bottom plate can prevent marine organisms from entering the pump body and avoid the marine organisms from being adsorbed on the pump cavity; when working, the bottom plate is located directly below the water inlet horn, so that a flow channel is formed between the water inlet horn and the bottom plate, the flow channel prevents vortexes from being generated, and the anti-cavitation performance is improved.

Description

Technical Field

[0001] This invention relates to the field of water pumps, and more particularly to a marine organism protection device for water pumps. Background Technology

[0002] In existing seawater pumping stations, the pump inlets are mostly of the horn-shaped type. After long-term use, various marine organisms (especially shellfish) will remain inside the pump body and adhere to the flow channel. When marine organisms adhere to the pump cavity, it will lead to increased friction, increased losses, and increased energy consumption; on the other hand, it will reduce the lifespan of rotor components, thereby reducing the pump's lifespan. Summary of the Invention

[0003] The purpose of this invention is to overcome the defects of the prior art and provide a marine organism protection device for water pumps.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] A marine organism-proof auxiliary device for a water pump, the water pump including a pump body and an inlet horn, the horn opening of the inlet horn pointing vertically downwards, the auxiliary device including a base plate, a lifting rod and a fixing assembly, at least one horizontal fixing plate provided on the outer side wall of the pump body, a first guide hole provided on the horizontal fixing plate, a horizontal support plate provided on the outer side wall of the inlet horn, a second guide hole provided on the horizontal support plate, the first guide hole and the second guide hole forming a guide channel, the base plate being located directly below the horn opening, one end of the lifting rod being connected to the base plate, the other end passing through the second guide hole and the first guide hole in sequence, and the fixing assembly being installed on a fixed structure on or underwater for fixing the vertical movement position of the lifting rod within the guide channel.

[0006] Furthermore, the bottom surface of the horizontal support plate and the horn opening plane of the water inlet horn are coplanar.

[0007] Furthermore, the shape of the base plate is the same as the shape of the inlet horn; the area of ​​the base plate is larger than the area of ​​the inlet horn.

[0008] Furthermore, it includes at least three lifting rods, evenly distributed around the pump body.

[0009] Furthermore, the cross-section of the lifting rod is circular or regular polygonal, and the second guide hole and the first guide hole are corresponding circular holes or regular polygonal holes.

[0010] Furthermore, the fixing component includes a clamping plate and a support. The support is installed on the fixing structure. One end of the clamping plate is rotatably connected to the support, and the other end is provided with an arc groove. The lifting rod is provided with an annular protrusion. When the clamping plate rotates to a certain position, the lifting rod is engaged in the arc groove, and the clamping plate abuts against the bottom surface of the annular protrusion, restricting the movement of the lifting rod.

[0011] Furthermore, the annular protrusion is a first nut, and the lifting rod is provided with a threaded section, with the first nut nested on the threaded section.

[0012] Furthermore, a second nut is provided on the threaded section. When the arc groove of the clamping plate is fitted with the lifting rod, the clamping plate is held by the second nut and the first nut.

[0013] Furthermore, the base plate has a sealing ring on its upper surface for fitting the horn opening of the water inlet horn.

[0014] Furthermore, the base plate is a metal plate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This invention incorporates a base plate, lifting rod, and fixing components into a traditional water pump. When the pump stops working, the base plate completely blocks the inlet horn, preventing marine organisms from entering the pump body and avoiding their adsorption into the pump cavity. When the pump is working, the base plate is located directly below the inlet horn, forming a stable flow channel between the inlet horn and the base plate to prevent vortex formation and improve cavitation resistance.

[0017] 2. The invention uses at least three lifting rods to ensure that the base plate can move smoothly and stably; at the same time, the cross-section of the lifting rods can be designed as regular polygons to prevent them from rotating and further improve stability.

[0018] 3. The fixing component of the present invention adopts a structure of a clamping plate and a nut, which is convenient to design and manufacture. The nut can be adjusted up and down on the threaded section of the lifting rod. It can be finely adjusted according to the specific water pump length to ensure that while the nut is in contact with the clamping plate, the base plate can be in contact with the water inlet horn to form a seal, which has strong applicability.

[0019] 4. The first and second nuts clamp the plate to fix the moving position of the lifting rod, ensuring that the bottom plate and the water inlet horn are stable and do not move when they are in contact or when they are a certain distance apart, and will not be washed away by the water flow, thus ensuring strong working stability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention.

[0021] Figure 2 This is a structural diagram of a fixed component.

[0022] Figure 3 This is a bottom view diagram of the card plate.

[0023] Figure 4 This is a schematic diagram of the structure in use of the present invention.

[0024] Reference numerals: 1. Pump body, 2. Inlet horn, 3. Base plate, 4. Lifting rod, 41. Threaded section, 42. First nut, 5. Fixing assembly, 51. Clamping plate, 52. Support, 53. Arc groove, 6. Horizontal fixing plate, 61. First guide hole, 7. Horizontal support plate, 71. Second guide hole. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0026] like Figure 1 As shown, this embodiment provides a marine organism protection auxiliary device for a water pump. The water pump targeted in this embodiment is a conventional axial flow pump used in pumping stations that transport seawater. Its motor end is installed on the coast, and the pump end extends into the seawater. The pump end specifically includes a water pipe, a pump body 1, and an inlet horn 2 connected in sequence, wherein the horn opening of the inlet horn 2 faces vertically downward.

[0027] The auxiliary device specifically includes a base plate 3, a lifting rod 4, and a fixing assembly 5. At least one horizontal fixing plate 6 is provided on the outer wall of the pump body 1; in this embodiment, there is only one. A first guide hole 61 is provided on the horizontal fixing plate 6. A horizontal support plate 7 is provided on the outer wall of the water inlet horn 2, and a second guide hole 71 is provided on the horizontal support plate 7; thus, the first guide hole 61 and the second guide hole 71 form a guiding channel. The base plate 3 is located directly below the horn opening. The shape of the base plate 3 is the same as the shape of the horn opening of the water inlet horn 2, and its area is slightly larger than the area of ​​the horn opening, so that the base plate 3 can completely cover the horn opening. In this embodiment, it is a circular plate. The lifting rod 4 is distributed around the pump body 1. One end is fixedly connected to the side of the base plate 3, and the other end passes through the second guide hole 71 and the first guide hole 61 in sequence. That is, the lifting rod 4 can move up and down within the guiding channel, thereby causing the base plate 3 to fit against the horn opening to seal it, or moving the base plate 3 away from one end of the horn opening to form a water inlet channel.

[0028] In this embodiment, the bottom surface of the horizontal support plate 7 and the flare plane of the inlet horn 2 are coplanar, so that the base plate 3 can also fit with the horizontal support plate 7 when it is attached to the flare, thus improving the overall sealing performance. The base plate 3 is made of conventional metal plate, which is high in strength, low in cost, and long in service life. A sealing ring is provided on the upper surface of the base plate 3 for fitting the flare of the inlet horn 2, further improving the sealing performance.

[0029] In this embodiment, there are at least three lifting rods 4, and four are evenly distributed around the pump body 1. The cross-section of the lifting rods 4 can be circular or regular polygonal, and the second guide hole 71 and the first guide hole 61 are corresponding circular or regular polygonal holes, further improving stability. In this embodiment, the lifting rods 4 have a circular cross-section.

[0030] The fixing component 5 is installed on a fixed structure on or underwater, and is used to fix the vertical movement position of the lifting rod 4 within the guide channel. The fixed structure is a conventional device or equipment fixed in seawater, such as a seabed support or offshore platform. The fixing component 5 can be installed on each lifting rod 4; however, in this embodiment, to improve operational convenience, the fixing component 5 is installed on only one lifting rod 4. The fixing component 5 is as follows... Figure 2 and Figure 3 As shown, the structure includes a clamping plate 51 and a support 52. The support 52 is fixed to a fixed structure, and one end of the clamping plate 51 is rotatably connected to the support 52, allowing the clamping plate 51 to rotate around the support 52. An arcuate groove 53 is provided at the free end of the clamping plate 51, allowing the clamping plate 51 to engage with the lifting rod after rotating to a certain position. The lifting rod 4 has two threaded sections 41, with a first nut 42 fitted onto each threaded section 41 to form an annular protrusion. When the clamping plate 51 rotates to a certain position, the lifting rod 4 engages within the arcuate groove 53, and the clamping plate 51 abuts against the bottom surface of the annular protrusion, restricting the descent of the lifting rod 4. When the first nut 42 on the lower threaded section 41 abuts against the clamping plate 51, the base plate 3 precisely covers and fits the flared opening, forming a seal. When the first nut 42 on the upper threaded section 41 abuts against the clamping plate 51, the distance between the base plate 3 and the flared opening is [not specified]. Each threaded section 41 can be fitted with multiple first nuts 42 in conjunction with multiple clamping plates 51 set on the same rotating shaft to improve the stability of the fixation. The first nuts 42 on each threaded section 41 can be adjusted up and down, that is, they can be finely adjusted according to the specific length of the water pump, ensuring that while the nut is in contact with the clamping plate 51, the base plate 3 can be in contact with the water inlet horn 2 to form a seal, which is highly applicable.

[0031] In another embodiment, a second nut may be provided on each threaded section 41. When the arc groove 53 of the clamping plate 51 is fitted with the lifting rod 4, the clamping plate 51 is held by the second nut and the first nut 42, so that the position of the lifting rod 4 is more stable.

[0032] The working principle of this embodiment is as follows:

[0033] When starting the pump Figure 4As shown: Loosen the fixing component 5, and lower the lifting rod 4 manually or by lifting power device. The base plate 3 will then move away from the horn opening and descend. Then, fix the lowering position of the lifting rod 4 by fixing component 5, so that a flow channel is formed between the horn opening and the base plate 3, which ensures the stable flow of the medium, prevents the generation of vortices, and improves its anti-cavitation performance.

[0034] When the pump is stopped, Figure 1 As shown: Loosen the fixing component 5, raise the lifting rod 4 manually or by lifting power device, reseal the bottom plate 3 with the horizontal support, and fit the flare of the water inlet horn 2 to prevent marine organisms from entering the pump body 1, thereby preventing some marine organisms from adsorbing into the pump cavity.

[0035] The above auxiliary devices can prevent marine organisms from damaging the pump's internal cavity, thereby greatly improving the pump's service life.

[0036] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A marine organism protection device for a water pump, the water pump comprising a pump body (1) and an inlet horn (2), wherein the horn opening of the inlet horn (2) is vertically downward, characterized in that, The auxiliary device includes a base plate (3), a lifting rod (4), and a fixing component (5). At least one horizontal fixing plate (6) is provided on the outer side wall of the pump body (1). A first guide hole (61) is provided on the horizontal fixing plate (6). A horizontal support plate (7) is provided on the outer side wall of the water inlet horn (2). A second guide hole (71) is provided on the horizontal support plate (7). The first guide hole (61) and the second guide hole (71) form a guide channel. The base plate (3) is located directly below the horn opening. One end of the lifting rod (4) is connected to the base plate (3), and the other end passes through the second guide hole (71) and the first guide hole (61) in sequence. The fixing component (5) is installed on a fixed structure on the water surface or underwater and is used to fix the vertical movement position of the lifting rod (4) in the guide channel. The cross-section of the lifting rod (4) is circular or regular polygonal, and the second guide hole (71) and the first guide hole (61) are corresponding circular holes or regular polygonal holes; The fixing component (5) includes a clamping plate (51) and a support (52). The support (52) is installed on the fixing structure. One end of the clamping plate (51) is rotatably connected to the support (52), and the other end is provided with an arc groove (53). The lifting rod (4) is provided with an annular protrusion. When the clamping plate (51) rotates to a certain position, the lifting rod (4) is fitted into the arc groove (53), and the clamping plate (51) abuts against the bottom surface of the annular protrusion, restricting the movement of the lifting rod (4). The annular protrusion is the first nut (42), and the lifting rod (4) is provided with a threaded section (41), and the first nut (42) is nested on the threaded section (41); The threaded section (41) is also provided with a second nut. When the arc groove (53) of the clamping plate (51) is fitted with the lifting rod (4), the clamping plate (51) is clamped by the second nut and the first nut (42). When the water pump stops working, the base plate blocks the inlet of the water inlet horn to prevent marine life from entering the pump body; when the water pump is working, the base plate is located directly below the water inlet horn, so that a flow channel is formed between the water inlet horn and the base plate to ensure the stability of the medium and to prevent the generation of vortices.

2. The anti-marine organism auxiliary device for a water pump according to claim 1, characterized in that, The bottom surface of the horizontal support plate (7) and the horn mouth plane of the water inlet horn (2) are coplanar.

3. The anti-marine organism auxiliary device for a water pump according to claim 1, characterized in that, The shape of the base plate (3) is the same as the shape of the horn of the water inlet horn (2); the area of ​​the base plate (3) is larger than the area of ​​the horn of the water inlet horn (2).

4. The anti-marine organism auxiliary device for a water pump according to claim 1, characterized in that, It includes at least three lifting rods (4), which are evenly distributed around the pump body (1).

5. The anti-marine organism auxiliary device for a water pump according to claim 1, characterized in that, The base plate (3) has a sealing ring on its upper surface, which is used to fit the horn opening of the water inlet horn (2).

6. The anti-marine organism auxiliary device for a water pump according to claim 1, characterized in that, The base plate (3) is a metal plate.

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