High-efficiency water pump impeller structure based on CFD analysis

Abstract

This utility model relates to the field of water pump impeller technology and discloses a high-efficiency water pump impeller structure based on CFD analysis. It aims to solve the problems of large hydraulic losses and low efficiency in traditional impellers. Its core structure includes a coupling, on which a water pump impeller mechanism and an auxiliary flow guiding mechanism are integrated to form a coordinated water delivery system. The coupling has a water pump impeller mechanism and an auxiliary flow guiding mechanism on its surface. In the water pump impeller mechanism, the inner sleeve is fixed to the coupling, and the outer sleeve is connected to the inner sleeve's insertion slot via a plug-in block. The first and second water pump impeller blades outside the outer sleeve are staggered and alternately distributed, with tail flow holes at the outer ends of the blades. A limiting hole and a limiting top cover are provided at the top of the coupling. The base plate of the auxiliary flow guiding mechanism is mounted on the coupling. The flow guiding shell and the flow guiding cover are connected by a mounting base and bolts. The flow guiding shell has drainage holes. This structure, optimized by CFD, can reduce water flow interference and eddy current losses, improve water delivery efficiency, and is easy to disassemble and maintain, adapting to different working conditions.

Description

Technical Field

[0001] This utility model relates to the field of water pump impeller technology, specifically a high-efficiency water pump impeller structure based on CFD analysis. Background Technology

[0002] In the field of fluid transport, water pumps are core equipment, and their efficiency directly affects energy consumption and operating costs. Traditional water pump impeller design relies heavily on empirical formulas and experimental iterations, which suffers from insufficient fluid flow analysis. This can easily lead to large hydraulic losses and low efficiency due to unreasonable blade shapes. With the development of computational fluid dynamics (CFD) technology, numerical simulation can accurately analyze the flow field distribution inside the impeller. However, existing CFD-based impeller structure optimization still suffers from problems such as poor flow field matching and narrow high-efficiency range. There is an urgent need to propose new high-efficiency impeller structure design schemes.

[0003] The existing impeller blade design is not reasonable enough. When the water flows between the blades, it impacts and interferes with each other, resulting in a chaotic water flow path. The effective contact area between the water and the blades is insufficient, and the water conveying capacity per unit time is low. The water flow tends to accumulate at the tail of the blades and form eddies. These eddies consume some of the energy of the impeller rotation, which reduces the effective power used to push the water flow and lowers the water conveying efficiency, thus affecting the working efficiency of the entire device. Utility Model Content

[0004] The purpose of this invention is to provide a high-efficiency water pump impeller structure based on CFD analysis to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency water pump impeller structure based on CFD analysis, including a coupling, a water pump impeller mechanism being provided on the surface of the coupling, and an auxiliary flow guiding mechanism being provided on the surface of the coupling;

[0006] The pump impeller mechanism includes an inner sleeve fixedly connected to the coupling surface. The inner sleeve surface has an insertion groove. An outer sleeve is provided at the outer end of the inner sleeve, and an insertion block is fixedly connected to the inner end of the outer sleeve. A first pump impeller blade is fixedly connected to the outer surface of the outer sleeve, and a second pump impeller blade is fixedly connected to the outer surface of the outer sleeve. Tail-end flow holes are provided at the outer ends of the first and second pump impeller blades. A limit hole is provided at the top of the coupling, and a limit cover is installed at the top of the coupling. In the pump impeller mechanism, the first and second pump impeller blades are staggered and alternately distributed. This layout is achieved through CFD (Computational Fluid Dynamics). The water flow contact area and path have been analyzed and optimized to reduce mutual interference between the water flow and blades, allowing the water to be pushed more smoothly and improving the water delivery capacity per unit time. The tail flow hole at the outer end of the blade surface can guide part of the water flow through, reducing the eddy current loss caused by water accumulation at the blade tail, reducing energy waste, and further improving water delivery efficiency. The outer sleeve is connected to the inner sleeve through the plug-in slot via the plug-in block. With the design of fixing the limit top cover to the limit hole with bolts, the blade assembly can be quickly disassembled and replaced, ensuring that the blade assembly will not loosen when the impeller rotates at high speed, reducing energy loss caused by vibration, and extending the service life of the impeller. When the blades wear out or need to be adapted to different working conditions, there is no need to replace the entire impeller, reducing maintenance costs.

[0007] Preferably, the plug block is inserted into the plug slot, and the outer sleeve and inner sleeve are connected together through the plug slot and the plug block.

[0008] Preferably, the first water pump impeller blade and the second water pump impeller blade are both fixedly connected to the outer surface of the outer casing, and the first water pump impeller blade and the second water pump impeller blade are distributed alternately and in a staggered manner on the outer surface of the outer casing.

[0009] Preferably, the limiting top cover is fixed to the top of the limiting hole by bolts, and both the inner sleeve and the outer sleeve are disposed inside the limiting top cover.

[0010] Preferably, the auxiliary flow guiding mechanism includes a base plate mounted on the coupling surface. A flow guiding shell is mounted on the top of the base plate. Drainage holes are provided on the surface of the flow guiding shell. A first mounting seat is fixedly connected to the top of the surface of the flow guiding shell. A flow guiding hood is provided on the top of the flow guiding shell. A second mounting seat is fixedly connected to the outer end surface of the flow guiding hood. In the auxiliary flow guiding mechanism, the flow guiding shell and the flow guiding hood form a closed flow guiding space. The streamlined structure designed through CFD analysis can guide the water flow along a preset path, avoiding turbulence around the impeller and reducing local resistance loss. The drainage holes on the surface of the flow guiding shell can promptly discharge any air bubbles or accumulated water that may be trapped inside the shell, preventing water flow from impacting air bubbles and generating additional energy consumption, ensuring stable water delivery. The flow guiding shell and the flow guiding hood are connected by the first mounting seat, the second mounting seat, and bolts. The assembly gap of the flow guiding components can be adjusted according to the pump cavity size or water flow requirements to adapt to different working conditions.

[0011] Preferably, the flow guide shell and the flow guide cover are connected by a first mounting base, a second mounting base, and bolts.

[0012] Compared with the prior art, this utility model provides a high-efficiency water pump impeller structure based on CFD analysis, which has the following beneficial effects:

[0013] 1. This high-efficiency water pump impeller structure based on CFD analysis features a water pump impeller mechanism. In this mechanism, the first and second impeller blades are staggered and alternately distributed. This layout optimizes the water flow contact area and path through CFD analysis, reducing mutual interference between the blades and allowing the water to be pushed more smoothly, thus improving the water delivery capacity per unit time. The tail flow holes at the outer end of the blade surface guide some water flow through, reducing eddy current losses caused by water accumulation at the blade tail, reducing energy waste, and further improving water delivery efficiency. The outer sleeve is connected to the inner sleeve's insertion slot via a plug-in block. Combined with the design of the limit cover being fixed to the limit hole by bolts, the blade assembly can be quickly disassembled and replaced, ensuring that the blade assembly will not loosen when the impeller rotates at high speed, reducing energy loss caused by vibration, and extending the impeller's service life. When the blades wear out or need to be adapted to different working conditions, there is no need to replace the entire impeller, reducing maintenance costs.

[0014] 2. The high-efficiency water pump impeller structure based on CFD analysis is equipped with an auxiliary flow guiding mechanism. In the auxiliary flow guiding mechanism, the flow guiding shell and the flow guiding cover form a closed flow guiding space. The streamlined structure designed through CFD analysis can guide the water flow along a preset path, avoiding turbulence around the impeller and reducing local resistance loss. The drainage holes on the surface of the flow guiding shell can promptly discharge any air bubbles or water that may be trapped inside the shell, preventing the water flow from impacting the air bubbles and generating additional energy consumption, thus ensuring stable water delivery. The flow guiding shell and the flow guiding cover are connected by a first mounting base, a second mounting base, and bolts. The assembly gap of the flow guiding components can be adjusted according to the water pump cavity size or water flow requirements to adapt to different working conditions. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the impeller mechanism of the water pump of this utility model;

[0018] Figure 3 This is a schematic diagram of the first and second water pump impeller blades of the present invention.

[0019] Figure 4 This is a schematic diagram of the auxiliary flow guiding mechanism of this utility model.

[0020] In the diagram: 1. Coupling; 2. Pump impeller mechanism; 21. Inner sleeve; 22. Insertion slot; 23. Outer sleeve; 24. Insertion block; 25. First pump impeller blade; 26. Second pump impeller blade; 27. Tail flow hole; 28. Limiting hole; 29. ​​Limiting top cover; 3. Auxiliary flow guiding mechanism; 31. Base plate; 32. Flow guiding shell; 33. First mounting base; 34. Drain hole; 35. Flow guiding cover; 36. Second mounting base. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] This utility model provides the following technical solution:

[0024] Example 1

[0025] Please see Figure 1-4 A high-efficiency water pump impeller structure based on CFD analysis includes a coupling 1, a water pump impeller mechanism 2 is provided on the surface of the coupling 1, and an auxiliary flow guiding mechanism 3 is provided on the surface of the coupling 1.

[0026] The pump impeller mechanism 2 includes an inner sleeve 21, which is fixedly connected to the surface of the coupling 1. The surface of the inner sleeve 21 has an insertion groove 22. An outer sleeve 23 is provided at the outer end of the inner sleeve 21. An insertion block 24 is fixedly connected to the inner end of the outer sleeve 23. A first pump impeller blade 25 is fixedly connected to the outer surface of the outer sleeve 23, and a second pump impeller blade 26 is fixedly connected to the outer surface of the outer sleeve 23. Tail-end flow holes 27 are provided at the outer ends of the surfaces of the first and second pump impeller blades 25 and 26. A limit hole 28 is provided at the top of the coupling 1, and a limit cover 29 is installed on the top of the coupling 1. In the pump impeller mechanism 2, the first pump impeller blade 25 and the second pump impeller blade 26 are staggered and alternately distributed. This layout is achieved through CFD... The water flow contact area and path were analyzed and optimized to reduce mutual interference between water flows between blades, making the water flow smoother and improving the water delivery capacity per unit time. The tail flow hole 27 at the outer end of the blade surface can guide some water flow through, reducing the eddy current loss caused by water accumulation at the tail of the blade, reducing energy waste, and further improving water delivery efficiency. The outer sleeve 23 is connected to the inner sleeve 21 through the insertion slot 22 of the insertion block 24. With the design of fixing the limiting top cover 29 to the limiting hole 28 by bolts, the blade assembly can be quickly disassembled and replaced, ensuring that the blade assembly will not loosen when the impeller rotates at high speed, reducing the energy loss caused by vibration, and extending the service life of the impeller. When the blades are worn or need to be adapted to different working conditions, there is no need to replace the entire impeller, reducing maintenance costs.

[0027] The plug block 24 is inserted into the plug slot 22, and the outer sleeve 23 and the inner sleeve 21 are connected together with the plug block 24 through the plug slot 22;

[0028] The first water pump impeller blade 25 and the second water pump impeller blade 26 are both fixedly connected to the outer surface of the outer jacket 23, and the first water pump impeller blade 25 and the second water pump impeller blade 26 are distributed alternately and staggered on the outer surface of the outer jacket 23.

[0029] The limiting top cover 29 is fixed to the top of the limiting hole 28 by bolts, and the inner sleeve 21 and the outer sleeve 23 are both set inside the limiting top cover 29.

[0030] Example 2

[0031] Please see Figure 1-4 Furthermore, based on Embodiment 1, the auxiliary flow guiding mechanism 3 includes a base plate 31, which is mounted on the surface of the coupling 1. A flow guiding shell 32 is mounted on the top of the base plate 31. A drainage hole 34 is provided on the surface of the flow guiding shell 32. A first mounting seat 33 is fixedly connected to the top surface of the flow guiding shell 32. A flow guiding hood 35 is provided on the top of the flow guiding shell 32. A second mounting seat 36 is fixedly connected to the outer end surface of the flow guiding hood 35. In the auxiliary flow guiding mechanism 3, the flow guiding shell 32 and the flow guiding hood 35 form a closed flow guiding space. (The last sentence appears to be incomplete and possibly refers to a different implementation.) The streamlined structure of the design can guide the water flow along a preset path, avoiding turbulence around the impeller and reducing local resistance loss. The drainage holes 34 on the surface of the guide shell 32 can promptly discharge any air bubbles or water that may be trapped inside the shell, preventing the water flow from impacting the air bubbles and generating additional energy consumption, thus ensuring stable water delivery. The guide shell 32 and the guide cover 35 are connected by the first mounting base 33, the second mounting base 36, and bolts. The assembly gap of the guide components can be adjusted according to the size of the water pump cavity or the water flow requirements to adapt to different working conditions.

[0032] The flow guide housing 32 and the flow guide cover 35 are connected by a first mounting base 33, a second mounting base 36 and bolts.

[0033] In actual operation, when this device is used, in the water pump impeller mechanism 2, the first water pump impeller blade 25 and the second water pump impeller blade 26 are staggered and alternately distributed. This layout optimizes the water flow contact area and path through CFD analysis, reduces the mutual interference of water flow between blades, makes the water flow smoother, and improves the water delivery capacity per unit time. The tail flow hole 27 at the outer end of the blade surface can guide part of the water flow through, reduce the eddy current loss caused by water flow accumulation at the tail of the blade, reduce energy waste, and further improve the water delivery efficiency. The outer sleeve 23 is connected to the inner sleeve 21 through the insertion slot 22 of the insertion block 24. With the design of fixing the limiting top cover 29 to the limiting hole 28 by bolts, the blade assembly can be quickly disassembled and replaced, ensuring that the blade assembly will not loosen when the impeller rotates at high speed, reducing the energy loss caused by vibration, and extending the service life of the impeller. When the blades are worn or need to be adapted to different working conditions, there is no need to replace the entire impeller, reducing maintenance costs.

[0034] In the auxiliary flow guiding mechanism 3, the flow guiding shell 32 and the flow guiding cover 35 form a closed flow guiding space. The streamlined structure designed through CFD analysis can guide the water flow along a preset path, avoid the water flow from forming turbulence around the impeller, and reduce local resistance loss. The drainage holes 34 on the surface of the flow guiding shell 32 can discharge any air bubbles or water that may be trapped inside the shell in time, prevent the water flow from impacting the air bubbles and generating additional energy consumption, and ensure stable water delivery. The flow guiding shell 32 and the flow guiding cover 35 are connected by the first mounting base 33, the second mounting base 36 and bolts. The assembly gap of the flow guiding components can be adjusted according to the size of the water pump cavity or the water flow requirements to adapt to different working conditions.

[0035] The auxiliary flow guiding mechanism 3 works in conjunction with the pump impeller mechanism 2. The former is responsible for guiding the water flow in the early stage and stabilizing the flow in the later stage, while the latter is responsible for actively delivering water. The two form a complete water flow control chain of "flow guiding - water delivery - flow stabilization". Through CFD-optimized structural synergy, the overall hydraulic loss is reduced and the pump operating efficiency is improved. The pump impeller mechanism 2 achieves efficient water delivery and convenient maintenance through blade layout optimization and detachable structure. The auxiliary flow guiding mechanism 3 enhances the stability of the water flow through flow guiding design and flexible assembly. The combination of the two enables the pump to achieve the goal of high-efficiency operation under the guidance of CFD analysis.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A high-efficiency water pump impeller structure based on CFD analysis, comprising a coupling (1), characterized in that: The surface of the coupling (1) is provided with a water pump impeller mechanism (2), and the surface of the coupling (1) is provided with an auxiliary flow guiding mechanism (3). The pump impeller mechanism (2) includes an inner sleeve (21), which is fixedly connected to the surface of the coupling (1). The inner sleeve (21) has a slot (22) on its surface. An outer sleeve (23) is provided at the outer end of the inner sleeve (21). A plug block (24) is fixedly connected to the inner end of the outer sleeve (23). A first pump impeller blade (25) is fixedly connected to the outer surface of the outer sleeve (23). A second pump impeller blade (26) is fixedly connected to the outer surface of the outer sleeve (23). A tail flow hole (27) is provided at the outer end of the surfaces of the first pump impeller blade (25) and the second pump impeller blade (26). A limit hole (28) is provided at the top of the coupling (1). A limit cover (29) is installed at the top of the coupling (1).

2. The high-efficiency water pump impeller structure based on CFD analysis according to claim 1, characterized in that: The plug block (24) is inserted into the plug slot (22), and the outer sleeve (23) and inner sleeve (21) are connected together through the plug slot (22) and the plug block (24).

3. The high-efficiency water pump impeller structure based on CFD analysis according to claim 1, characterized in that: The first water pump impeller blade (25) and the second water pump impeller blade (26) are both fixedly connected to the outer surface of the outer jacket (23). The first water pump impeller blade (25) and the second water pump impeller blade (26) are distributed alternately on the outer surface of the outer jacket (23).

4. The high-efficiency water pump impeller structure based on CFD analysis according to claim 1, characterized in that: The limiting top cover (29) is fixed to the top of the limiting hole (28) by bolts, and the inner sleeve (21) and outer sleeve (23) are both set inside the limiting top cover (29).

5. The high-efficiency water pump impeller structure based on CFD analysis according to claim 1, characterized in that: The auxiliary flow guiding mechanism (3) includes a base plate (31), which is mounted on the surface of the coupling (1). A flow guiding shell (32) is mounted on the top of the base plate (31). A drain hole (34) is opened on the surface of the flow guiding shell (32). A first mounting seat (33) is fixedly connected to the top of the surface of the flow guiding shell (32). A flow guiding cover (35) is provided on the top of the flow guiding shell (32). A second mounting seat (36) is fixedly connected to the outer end surface of the flow guiding cover (35).

6. The high-efficiency water pump impeller structure based on CFD analysis according to claim 5, characterized in that: The flow guide shell (32) and the flow guide cover (35) are connected by a first mounting base (33), a second mounting base (36) and bolts.

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