Filter device for a vertical pump and vertical pump

Abstract

The embodiment of the application provides a filtering device for a vertical pump and the vertical pump, and relates to the technical field of pumps.The filtering device for the vertical pump comprises a filter screen, a rotating shaft and a rotating nozzle rod, the filter screen is used for being immersed in a water pool, the rotating shaft is rotatably arranged on the filter screen, the rotating shaft is used for being coaxially connected with a rotating shaft of a pump body, the rotating nozzle rod is connected with the rotating shaft, and the rotating nozzle rod sprays water towards the filter screen in the process that the rotating shaft rotates synchronously with the rotating shaft of the pump body, impurities blocked in filter holes can be better removed, and normal operation of the vertical pump is ensured.

Description

Technical Field

[0001] This invention relates to the field of pump technology, and more specifically, to a filter device for a vertical pump and a vertical pump. Background Technology

[0002] In the application of vertical pumps, the filter screen is installed at the water inlet at the tail of the vertical pump. Its main purpose is to filter impurities present in the water tank and prevent the impeller guide port from becoming blocked.

[0003] Existing filters mainly filter water through their own multiple pores. After a period of filtration, impurities will clog the pores. When the number of clogged pores reaches a certain level, it will affect the amount of water sucked into the vertical pump, causing low or no flow rate malfunctions. Summary of the Invention

[0004] The present invention aims to provide, for example, a filter device for a vertical pump that can effectively remove impurities clogging the filter pores, thereby ensuring the normal operation of the vertical pump.

[0005] The present invention also aims to provide a vertical pump that can effectively remove impurities clogging the filter holes, thereby ensuring the normal operation of the vertical pump.

[0006] The embodiments of the present invention can be implemented as follows:

[0007] An embodiment of the present invention provides a vertical pump filtration device, which includes a filter screen, a rotating shaft, and a rotating nozzle rod. The filter screen is used to be immersed in a water tank. The rotating shaft is rotatably mounted on the filter screen and is used to be coaxially connected to the rotating shaft of the pump body. The rotating nozzle rod is connected to the rotating shaft. During the process of the rotating shaft rotating synchronously with the rotating shaft of the pump body, the rotating nozzle rod sprays water toward the filter screen.

[0008] Optionally, the rotating nozzle rod includes a rod body, a nozzle, and a guide pipe, wherein the guide pipe is disposed within the rod body, and both ends of the guide pipe are respectively connected to the water tank and the nozzle.

[0009] Optionally, a groove is provided through the rod along its length, and the guide tube is disposed on the inner bottom wall of the groove.

[0010] Optionally, an embedding groove is provided in the middle of the inner bottom wall of the groove, the guide pipe is embedded in the embedding groove, and guide arc surfaces are respectively provided on both sides of the embedding groove on the inner bottom wall of the groove.

[0011] Optionally, the rod body is cylindrical, and a pointed portion is formed between the inner wall of the groove and the rod wall of the rod body.

[0012] Optionally, a notch is provided on the side wall of the end of the guide tube away from the nozzle.

[0013] Optionally, a first guide groove is formed on the inner wall of the guide tube, a through hole is formed in the nozzle, a second guide groove is formed on the inner wall of the through hole, the second guide groove is connected to the first guide groove, and both the first guide groove and the second guide groove are spiral-shaped.

[0014] Optionally, the nozzle is a spherical nozzle.

[0015] Optionally, there may be multiple rotating nozzle rods, each of which is perpendicular to the rotation axis. The multiple rotating nozzle rods are arranged sequentially along the axial direction of the rotation axis, and adjacent rotating nozzle rods have an included angle.

[0016] An embodiment of the present invention also provides a vertical pump, including a pump body, an impeller, and the above-mentioned vertical pump filter device, wherein the impeller is disposed on the rotating shaft of the pump body, and the rotating shaft is coaxially connected to the rotating shaft of the pump body.

[0017] The beneficial effects of the vertical pump filtration device and vertical pump of the present invention include, for example: during the use of the vertical pump, the rotating shaft of the pump body rotates, causing the rotating shaft to rotate synchronously, and the rotating nozzle rod rotates synchronously with the rotating shaft. During the rotation of the rotating nozzle rod, the rotating nozzle rod sprays water toward the filter screen, thereby impacting the impurities on the filter screen and causing the impurities to fall out from the filter holes of the filter screen, thereby ensuring the normal operation of the vertical pump. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a partial structural diagram of the vertical pump in an embodiment of this application;

[0020] Figure 2 This is a schematic diagram of the structure of the rotating nozzle rod in the embodiments of this application;

[0021] Figure 3 This is a cross-sectional view of the rotating nozzle rod in an embodiment of this application.

[0022] Icons: 100-Filter screen; 110-Positioning sleeve; 200-Rotating shaft; 300-Rotating nozzle rod; 310-Rod body; 311-Groove; 3111-Embedded groove; 3112-Guide arc surface; 3113-Tip; 320-Nozzle; 321-Through hole; 322-Second guide groove; 330-Guide pipe; 331-Notch; 332-First guide groove; 400-Impeller; 500-Rotating shaft. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, 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. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0025] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0026] In the description of this invention, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed, they are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0027] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0028] It should be noted that, where there is no conflict, the features in the embodiments of the present invention can be combined with each other.

[0029] The inventors of this application have discovered that existing filter screens primarily filter water through multiple filter pores. After a period of filtration, impurities clog these pores. When a certain number of filter pores become clogged, it affects the amount of water drawn into the vertical pump, causing low or no flow rate. This embodiment provides a vertical pump that at least addresses this technical problem.

[0030] Please refer to Figures 1-3 This embodiment provides a vertical pump, including a pump body (not shown in the figure), an impeller 400, and a filter device for the vertical pump. The impeller 400 is disposed on the rotating shaft 500 of the pump body.

[0031] The vertical pump filtration device includes a filter screen 100, a rotating shaft 200, and a rotating nozzle rod 300. The filter screen 100 is used to be immersed in a water tank. The rotating shaft 200 is rotatably mounted on the filter screen 100 and is coaxially connected to the rotating shaft 500 of the pump body. The rotating nozzle rod 300 is connected to the rotating shaft 200. As the rotating shaft 200 rotates synchronously with the rotating shaft 500 of the pump body, the rotating nozzle rod 300 sprays water toward the filter screen 100.

[0032] It should be noted that the filter screen 100 is cylindrical and has multiple filter holes along its circumference; the rotating shaft 200 is coaxial with the filter screen 100 and is rotatably connected to the filter screen 100; the rotating nozzle rod 300 is fixedly connected to the rotating shaft 200 by a nut; one end of the rotating shaft 200 extends to the outside of the filter screen 100 and is threadedly connected to the rotating shaft 500 of the pump body by a nut; the direction of its thread rotation is consistent with the direction of rotation of the pump body when it is started, the purpose of which is to prevent the rotating shaft 200 from loosening during operation.

[0033] During the operation of the vertical pump, the rotating shaft 500 of the pump body rotates, driving the rotating shaft 200 to rotate synchronously. The rotating nozzle rod 300 rotates synchronously with the rotating shaft 200. As the rotating nozzle rod 300 rotates, it sprays water towards the filter screen 100, thereby impacting the impurities on the filter screen 100 and causing them to fall out of the filter holes of the filter screen 100. This ensures the normal operation of the vertical pump. This process eliminates the need for manual cleaning of the filter screen 100, greatly saving various resources. Because it eliminates the clogging of the filter screen 100 to a certain extent, it prevents the pump body from running dry and effectively improves the pump body's lifespan.

[0034] In addition, a positioning sleeve 110 is provided on the inner bottom wall of the filter screen 100. One end of the rotating shaft 200 passes through the positioning sleeve 110 and is in clearance fit with the positioning sleeve 110. The positioning sleeve 110 can prevent the rotating shaft 200 from deviating during the high-speed rotation of the rotating shaft 200 and limit the rotating shaft 200.

[0035] Optionally, the positioning sleeve 110 is made of Babbitt alloy, which can greatly improve the wear resistance and service life of the positioning sleeve 110.

[0036] In an optional embodiment, there are multiple rotating nozzle rods 300, each of which is perpendicular to the rotation axis 200. The multiple rotating nozzle rods 300 are arranged sequentially along the axial direction of the rotation axis 200, and there is an included angle between adjacent rotating nozzle rods 300.

[0037] It should be noted that multiple rotary nozzle rods 300 are spaced apart along the axial direction of the rotation shaft 200, and adjacent rotary nozzle rods 300 extend in different directions.

[0038] For example, the number of rotary nozzle rods 300 can be four, six, or eight, and the included angle between adjacent rotary nozzle rods 300 can be 60°, 90°, or 120°. The number of rotary nozzle rods 300 and the included angle between adjacent rotary nozzle rods 300 can be determined according to the actual working conditions.

[0039] During the high-speed operation of the pump body, multiple rotating nozzle rods 300 can spray water toward the filter screen 100 respectively, impacting the impurities on the filter screen 100. In addition, multiple rotating nozzle rods 300 can also play a cutting role. When the impurities sucked into the filter screen 100 hit the rotating nozzle rods 300, the rotating nozzle rods 300 can break the impurities.

[0040] In an optional embodiment, the rotating nozzle rod 300 includes a rod body 310, a nozzle 320, and a guide tube 330. The guide tube 330 is disposed inside the rod body 310, and the two ends of the guide tube 330 are respectively connected to the water tank and the nozzle 320.

[0041] It should be noted that the end of the rod 310 away from the nozzle 320 is fixedly connected to the rotating shaft 200 by a nut, and the guide pipe 330 can guide the water in the pool to the nozzle 320 to spray out, so as to impact the impurities on the filter holes of the filter screen 100.

[0042] In an optional embodiment, a groove 311 is provided through the rod 310 along its own length direction, and a guide tube 330 is disposed on the inner bottom wall of the groove 311.

[0043] By providing a groove 311 on the rod 310, the groove 311 can accommodate the guide tube 330.

[0044] In an optional embodiment, an embedding groove 3111 is provided in the middle of the inner bottom wall of the groove 311, and the guide pipe 330 is embedded in the embedding groove 3111. Guide arc surfaces 3112 are respectively provided on both sides of the embedding groove 3111 on the inner bottom wall of the groove 311.

[0045] It should be noted that the groove 311 has an inner bottom wall and two opposing inner side walls. The embedding groove 3111 is an arc-shaped groove. The guide tube 330 is embedded in the embedding groove 3111, which can fix the guide tube 330 and the rod 310 relative to each other. The guide arc surface 3112 and the groove wall of the embedding groove 3111 are arc transitioned.

[0046] During the high-speed operation of the pump body, the guide arc surface 3112 can press the water in the pool into the guide pipe 330, which plays a guiding role. The pump body itself can provide the driving force to press the water into the guide pipe 330 simply by operating.

[0047] In an optional embodiment, the rod 310 is cylindrical, and a tip 3113 is formed between the inner wall of the groove 311 and the rod wall of the rod 310.

[0048] The tip 3113 can break up impurities in the suction filter 100 during high-speed operation of the pump body, preventing impurities from entering the impeller 400 and causing blockage, and effectively ensuring that the flow and pressure of the pump body are not affected.

[0049] In an optional embodiment, a notch 331 is provided on the side wall of the end of the guide tube 330 away from the nozzle 320.

[0050] It should be noted that the notch 331 is roughly U-shaped. By opening the notch 331 on the side wall of the guide pipe 330, the water intake of the guide pipe 330 can be increased, the impact of the water flow on the filter screen 100 can be increased, and the cleaning effect can be improved.

[0051] In an optional embodiment, a first guide groove 332 is provided on the inner wall of the guide pipe 330, a through hole 321 is provided in the nozzle 320, a second guide groove 322 is provided on the inner wall of the through hole 321, the second guide groove 322 is connected to the first guide groove 332, and both the first guide groove 332 and the second guide groove 322 are spiral.

[0052] By setting a spiral-shaped and interconnected first guide channel 332 and second guide channel 322, the water column introduced into the guide pipe 330 passes through the first guide channel 332 and the second guide channel 322 in sequence, and finally sprays out through the nozzle 320 to form an umbrella-shaped water column. The umbrella-shaped water column can increase the impact area of ​​the filter screen 100.

[0053] When the pump body operates at high speed, the rod 310 rotates horizontally, ensuring that the water in the pool quickly enters the guide pipe 330 to form a water column, and ensuring the water volume and pressure of the water column. The water column flows out rapidly through the first guide groove 332 and the second guide groove 322, forming an umbrella-shaped water column. The umbrella-shaped water column impacts the filter holes, and the impact direction of the umbrella-shaped water column is opposite to the water inlet direction at the filter holes. The two water flows converge and impact near the filter holes, forming a local strong turbulent state near the filter holes, which prevents impurities from accumulating at the filter holes, avoids filter hole clogging, and enables the filter holes to achieve self-cleaning.

[0054] Optionally, the nozzle 320 is a spherical nozzle. Understandably, the shape of the nozzle 320 can be determined according to the actual working conditions; for example, the nozzle 320 can be square or disc-shaped.

[0055] In summary, the embodiments of the present invention provide a filter device for a vertical pump and a vertical pump. During the use of the vertical pump, the rotating shaft 500 of the pump body rotates, driving the rotating shaft 200 to rotate synchronously. Multiple rotating nozzle rods 300 rotate synchronously with the rotating shaft 200. During the horizontal rotation of the rotating nozzle rods 300, the guide arc surface 3112 in the groove 311 can press the water in the pool into the guide pipe 330. The water column flows out rapidly through the first guide groove 332 and the second guide groove 322 to form an umbrella-shaped water column. The umbrella-shaped water column impacts the filter holes, causing impurities to be removed from the filter holes of the filter screen 100, thereby avoiding filter hole blockage and ensuring the normal operation of the vertical pump. This process does not require manual cleaning of the filter screen 100, greatly saving various resources. Moreover, because the blockage of the filter screen 100 is eliminated to a certain extent, the pump body is prevented from running dry, effectively improving the pump body's lifespan.

[0056] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A filter device for a vertical pump, characterized in that, The device includes a filter screen (100), a rotating shaft (200), and a rotating nozzle rod (300). The filter screen (100) is used to be submerged in a water tank. The rotating shaft (200) is rotatably mounted on the filter screen (100) and is coaxially connected to the rotating shaft (500) of the pump body. The rotating nozzle rod (300) is connected to the rotating shaft (200). During the synchronous rotation of the rotating shaft (200) with the rotating shaft (500) of the pump body, the rotating nozzle rod (300) sprays water toward the filter screen (100). The rotating nozzle rod (300) includes a rod body (310), a nozzle (320), and a guide tube (330). The guide tube (330) is disposed inside the rod body (310), and the two ends of the guide tube (330) are respectively connected to the water tank and the nozzle (320). The inner wall of the guide pipe (330) is provided with a first guide groove (332), the nozzle (320) is provided with a through hole (321), the inner wall of the through hole (321) is provided with a second guide groove (322), the second guide groove (322) is connected to the first guide groove (332), and both the first guide groove (332) and the second guide groove (322) are spiral in shape; The rod (310) has a groove (311) extending through its length, and the guide tube (330) is disposed on the inner bottom wall of the groove (311); A notch (331) is provided on the side wall of the end of the guide tube (330) away from the nozzle (320).

2. The vertical pump filtration device according to claim 1, characterized in that, An embedding groove (3111) is provided in the middle of the inner bottom wall of the groove (311), and the guide pipe (330) is embedded in the embedding groove (3111). Guide arc surfaces (3112) are respectively provided on the inner bottom wall of the groove (311) on both sides of the embedding groove (3111).

3. The vertical pump filtration device according to claim 1, characterized in that, The rod (310) is cylindrical, and a tip (3113) is formed between the inner wall of the groove (311) and the rod wall of the rod (310).

4. The vertical pump filtration device according to claim 1, characterized in that, The nozzle (320) is a spherical nozzle.

5. The vertical pump filtration device according to claim 1, characterized in that, There are multiple rotating nozzle rods (300), each of which is perpendicular to the rotating shaft (200). The multiple rotating nozzle rods (300) are arranged sequentially along the axial direction of the rotating shaft (200), and there is an included angle between adjacent rotating nozzle rods (300).

6. A vertical pump, characterized in that, The pump includes a pump body, an impeller (400), and a vertical pump filter as described in any one of claims 1-5, wherein the impeller (400) is disposed on the rotating shaft (500) of the pump body, and the rotating shaft (200) is coaxially connected to the rotating shaft (500) of the pump body.

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