Water pump guide vane
By adopting an involute cover and a pressure relief port structure in the water pump guide vane, the problem of dispersed efficiency of the existing water pump guide vane is solved, the lift and performance are improved, and the guide vane cracking is prevented.
Patent Information
- Application Number
- CN202423000144.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-12-05
AI Technical Summary
The existing water pump guide vane has two large-diameter water outlets, which leads to dispersed efficiency and insufficient head, affecting performance.
A water pump guide vane is designed with an involute cover and a pressure relief port structure. A pressure relief port is set at the tail end of the first water channel to reduce efficiency dispersion. The diameter of the pressure relief port is smaller than the water outlet. Combined with the width and height variation design of the involute water channel, it promotes water flow and reduces pressure loss.
It increases the lift of the water pump, improves the performance of the water pump, prevents the guide vanes from cracking, and enhances the quality of the water pump.
Smart Images
Figure CN223330845U_ABST
Abstract
Description
Technical field:
[0001] The utility model belongs to the technical field of water pumps, in particular to a water pump guide vane. Background technology:
[0002] Existing water pump guide vanes (such as Figure 1 and Figure 2 (as shown) includes a guide vane body 2 with an end cover 1, a water inlet 3 is provided on the end cover 1, and two spiral water channels are formed between the inner side wall of the end cover 1 and the side wall of the guide vane body 2, namely a first spiral water channel 4 and a second spiral water channel 5, the tail end of the first spiral water channel 4 is adjacent to the head end of the second spiral water channel 5, and the head end of the second spiral water channel 5 is adjacent to the tail end of the first spiral water channel 4, and the tail ends of the first spiral water channel 4 and the second spiral water channel 5 are both provided with a water outlet, the impeller of the water pump stirs the water body, and the water flows into the water inlet 3 and is discharged outward through the first spiral water channel 4 and the second spiral water channel 5 respectively.
[0003] Since the water pump guide vane of the above structure has two water outlets 6, and the two water outlets 6 have substantially the same and large diameters, the efficiency is easily dispersed, resulting in insufficient head and affecting the performance. Utility model content:
[0004] The utility model aims to provide a water pump guide vane which can concentrate water discharge and reduce dispersion of efficiency so as to increase the lift of the water pump.
[0005] The utility model is achieved in this way:
[0006] The cover has a first end connected to the second cover body, and a second end connected to the second cover body, the second end of the first cover body being connected to the second cover body, and the second end of the first cover body being connected to the second cover body.
[0007] In the above-mentioned water pump guide vane, the connecting plate is arranged obliquely, the upper end of the connecting plate is connected to the first cover body, and the lower end is connected to the second cover body, and the angle between the connecting plate and the upper plane of the second cover body is an obtuse angle.
[0008] In the above-mentioned water pump guide vane, the pressure relief port is a square hole, the width of which is smaller than the width of the tail end of the first water channel.
[0009] In the above-mentioned water pump guide vane, the width of the involute water channel increases successively from the head end to the tail end.
[0010] In the above-mentioned water pump guide vane, the height from the first water channel to the inner side surface of the end cover increases successively from the head end to the tail end.
[0011] In the above-mentioned water pump guide vane, the height of the second water channel to the inner side surface of the end cover is the same from the head end to the tail end.
[0012] The outstanding advantages of the utility model compared with the prior art are:
[0013] 1. The outlet of the involute water channel of this utility model is provided with a pressure relief port, which can reduce the dispersion of efficiency. The pressure relief port is provided at the tail end of the first water channel. The diameter of the pressure relief port is smaller than the diameter of the water outlet, which can release the pressure to achieve the purpose of reducing pressure and prevent the cracking of the guide vane of the water pump. The use of the guide vane of the water pump can increase the head of the water pump and improve the quality of the water pump. Description of the drawings:
[0014] Figure 1 It is a front schematic diagram of the background technology;
[0015] Figure 2 It is a schematic diagram of the back of the background technology;
[0016] Figure 3 It is a front schematic diagram of the utility model;
[0017] Figure 4 It is a schematic diagram of the back side of the present invention.
[0018] Figure 1-Figure 2 : 1. End cover; 2. Guide vane body; 3. Water inlet; 4. First spiral water channel; 5. Second spiral water channel; 6. Water outlet.
[0019] Figure 3-Figure 4 : 10. Cover body; 11. Water inlet hole; 12. First cover body; 13. Second cover body; 14. Connecting plate; 15. Side edge; 16. Water outlet; 17. Pressure relief port; 18. First water channel; 19. Second water channel. Specific implementation method:
[0020] The present invention is further described below with reference to specific embodiments. Figure 3 —4:
[0021] The utility model provides a water pump guide vane, which includes an end cover 10, a water inlet hole 11 is provided at the center of the end cover 1, and an involute-shaped cover body is formed on the outside of the water inlet hole 11, and the involute is based on the water inlet hole 11. The cover body 10 includes a first cover body 12 and a second cover body 13. The tail end of the first cover body 12 is connected to the head end of the second cover body 13, and the tail end of the first cover body 12 is higher than the second cover body 13. A connecting plate 14 is provided between the tail end of the first cover body 12 and the head end of the second cover body 13. There is a cover body 12 on the outer ring of the cover body extending axially. The side edge 15 is in an involute shape, and a water outlet 16 is formed at the head and tail ends of the side edge 15. A pressure relief port 17 is provided on the connecting plate 14, and an involute water channel is provided on the inner side of the end cover 10, including a first water channel 18 located on the inner side of the first cover body 12 and a second water channel 19 located on the inner side of the second cover body 13. The tail end of the first water channel 18 is connected to the pressure relief port 17 and the second water channel 19, and the tail end of the second water channel 19 is connected to the water outlet 16. The diameter of the pressure relief port 17 is smaller than the diameter of the water outlet 16.
[0022] The outlet of the involute water channel of this utility model is provided with a pressure relief port 17 at the tail end of the first water channel 18, which is smaller than the diameter of the water outlet 16. This pressure relief port 17 can release pressure, achieve the purpose of reducing pressure, and prevent the guide vanes of this water pump from cracking. The use of this water pump guide vane can increase the head of the water pump and improve the quality of the water pump.
[0023] To facilitate pressure relief, the connecting plate 14 is tilted, with the upper end of the connecting plate 14 connected to the first cover 12 and the lower end connected to the second cover 13 . The angle between the connecting plate 12 and the upper plane of the second cover 13 is an obtuse angle.
[0024] Furthermore, the pressure relief port 17 is a square hole, the width of which is smaller than the width of the tail end of the first water channel 18. A small amount of water can be discharged from the pressure relief port 17 to achieve the purpose of reducing pressure.
[0025] Furthermore, the width of the involute water channel of the present invention increases from the leading end to the trailing end. The height of the first water channel 18 to the inner side of the end cap 10 increases from the leading end to the trailing end. The height of the second water channel 19 to the inner side of the end cap 10 remains the same from the leading end to the trailing end.
[0026] The above arrangement can promote the flow of water in the involute water channel.
[0027] The above embodiment is only one of the preferred embodiments of the present invention and is not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made based on the shape, structure, and principle of the present invention should be included in the scope of protection of the present invention.
Claims
1. A water pump guide vane, characterized in that: The invention comprises an end cover (10), a water inlet hole (11) is provided at the center of the end cover (10), an involute-shaped cover body is formed on the outside of the water inlet hole (11), the involute takes the water inlet hole (11) as a base circle, the cover body comprises a first cover body (12) and a second cover body (13), the tail end of the first cover body (12) is connected to the head end of the second cover body (13), and the tail end of the first cover body (12) is higher than the second cover body (13), a connecting plate (14) is provided between the tail end of the first cover body (12) and the head end of the second cover body (13), and a side edge (15) is extended axially on the outer ring of the cover body, and the side edge (15) The invention is in the shape of an involute, with a water outlet (16) formed at the head end and the tail end of the side edge (15), a pressure relief port (17) provided on the connecting plate (14), and an involute water channel provided on the inner side surface of the end cover (10), comprising a first water channel (18) located on the inner side surface of the first cover body (12) and a second water channel (19) located on the inner side surface of the second cover body (13), the tail end of the first water channel (18) being in communication with the pressure relief port (17) and the second water channel (19), the tail end of the second water channel (19) being in communication with the water outlet (16), and the diameter of the pressure relief port (17) being smaller than the diameter of the water outlet (16).
2. A water pump guide vane according to claim 1, characterized in that: The connecting plate (14) is tilted, the upper end of the connecting plate (14) is connected to the first cover body (12), and the lower end is connected to the second cover body (13), and the angle between the connecting plate (14) and the upper plane of the second cover body (13) is an obtuse angle.
3. A water pump guide vane according to claim 1 or 2, characterized in that: The pressure relief port (17) is a square hole, the width of which is smaller than the width of the tail end of the first water channel (18).
4. The water pump guide vane according to claim 1, characterized in that: The width of the involute water channel increases gradually from the head end to the tail end.
5. A water pump guide vane according to claim 1, 2 or 4, characterized in that: The height from the first water channel (18) to the inner side surface of the end cover (10) increases successively from the head end to the tail end.
6. The water pump guide vane according to claim 5, characterized in that: The height from the second water channel (19) to the inner side surface of the end cover (10) is the same from the head end to the tail end.