High-efficiency impeller structure of centrifugal pump

Abstract

The utility model discloses a centrifugal pump high-efficiency impeller structure which comprises a wheel disc installed in a centrifugal pump shell, a plurality of detachable blades arranged at equal intervals are arranged on the wheel disc, a center hole is formed in the center of the wheel disc, a pin hole is formed in the side face of the inner wall of the center hole, and the side faces of the blades are fixedly connected with an installation base. Mounting grooves matched with the mounting bases are formed in the positions, corresponding to the mounting bases, of the wheel disc, and fixing bases are fixedly connected to the side faces of the mounting bases. The detachable blades are adopted, when a single blade is damaged, only the sliding bayonet lock needs to be pulled, the sliding bayonet lock is separated from the corresponding clamping groove, the sliding bayonet lock is separated from the fixed base, the blades can be conveniently detached, and therefore the independent blades can be replaced; and resource waste caused by overall replacement of the impeller is avoided, so that the practicability of the impeller is improved.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump impeller technology, and in particular to a high-efficiency impeller structure for centrifugal pumps. Background Technology

[0002] A centrifugal pump is a pump that uses the centrifugal force generated by the rotation of an impeller to transport liquids. The impeller is an essential component of a centrifugal pump.

[0003] For example, Chinese patent CN93218219.4 discloses a high-efficiency impeller, which belongs to centrifugal pump impeller. It has eight wavy blades, four long and four short, with the long and short blades spaced apart and evenly distributed on the impeller. This structure is composed of forward-curved blades and backward-curved blades, which increases the flow area of ​​the impeller. It avoids the hump phenomenon in the head characteristic curve that often occurs when there are many blades and a large outlet angle, thereby improving the head, flow rate and overall efficiency of the centrifugal pump. It can also significantly reduce the volume and weight of centrifugal pumps with the same flow rate and head requirements. It is a reasonably structured and effective impeller structure.

[0004] Although the above technical solutions have solved the corresponding technical problems, they still have the following drawbacks:

[0005] The above technical solution makes it inconvenient to disassemble and assemble the impeller blades. Therefore, when the impeller blades are damaged, it is not convenient to replace them, thus reducing their practicality. Utility Model Content

[0006] The purpose of this invention is to provide a high-efficiency impeller structure for a centrifugal pump, which uses detachable blades. When a single blade is damaged, simply pull the sliding pin to disengage it from the corresponding slot, thereby disengaging the sliding pin from the fixed seat. This allows for convenient disassembly of the blade, enabling individual blade replacement and avoiding the resource waste caused by replacing the entire impeller. This improves the practicality of this invention.

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] A high-efficiency impeller structure for a centrifugal pump includes:

[0009] A wheel, wherein a plurality of detachable blades are arranged at equal intervals on the wheel.

[0010] The above-mentioned high-efficiency impeller structure for centrifugal pump has a central hole at the center of the impeller disc, and a pin hole is provided on the side of the inner wall of the central hole.

[0011] In the above-mentioned high-efficiency impeller structure of centrifugal pump, a mounting base is fixedly connected to the side of the blade, and a mounting groove matching the mounting base is opened on the impeller disc at a position corresponding to the mounting base.

[0012] In the above-mentioned high-efficiency impeller structure of centrifugal pump, a fixed seat is fixedly connected to the side of the mounting base, and a fixed groove matching the fixed seat is opened on the inner wall of the mounting groove at the position corresponding to the fixed seat.

[0013] In the above-mentioned high-efficiency impeller structure of centrifugal pump, a slot is provided on the inner wall of the fixed base, and a snap-fit ​​component is provided on the inner wall of the fixed slot corresponding to the position of the slot.

[0014] In the above-mentioned high-efficiency impeller structure of centrifugal pump, the snap-fit ​​assembly includes a mounting bracket fixedly connected to the inner wall of the fixed groove, a sliding snap pin that matches the snap groove is slidably connected to the mounting bracket, and a sleeve spring is sleeved on the sliding snap pin.

[0015] In the above-mentioned high-efficiency impeller structure of centrifugal pump, two symmetrically arranged limiting posts are fixedly connected to the side of the mounting base, and a limiting groove matching the limiting post is opened on the inner wall of the mounting groove at the position corresponding to the limiting post.

[0016] The above-mentioned high-efficiency impeller structure for centrifugal pump includes a reinforcing ring on the impeller disk corresponding to the position of the central hole.

[0017] In the above-mentioned high-efficiency impeller structure of centrifugal pump, a sealing cover matching the fixing groove is provided on the side of the fixing groove.

[0018] This utility model has at least the following beneficial effects:

[0019] The high-efficiency impeller structure of the centrifugal pump provided by this utility model adopts detachable blades. When a single blade is damaged, it is only necessary to pull the sliding pin and make the sliding pin disengage from the corresponding slot, thereby disengaging the sliding pin from the fixed seat. This allows for convenient disassembly of the blade, enabling individual blade replacement and avoiding the waste of resources caused by replacing the entire impeller, thus improving the practicality of this utility model. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0021] Figure 1 This is a schematic diagram of the high-efficiency impeller structure of the centrifugal pump of this utility model;

[0022] Figure 2 This is a schematic diagram of the blade structure in the high-efficiency impeller structure of the centrifugal pump of this utility model;

[0023] Figure 3 This is a schematic diagram of the blades in the high-efficiency impeller structure of the centrifugal pump of this utility model from another perspective;

[0024] Figure 4 This is a schematic diagram of the impeller structure in the high-efficiency impeller structure of the centrifugal pump of this utility model;

[0025] Figure 5 This is a schematic diagram of the impeller disk in the high-efficiency impeller structure of the centrifugal pump of this utility model from another perspective;

[0026] Figure 6 This is a schematic diagram of the snap-fit ​​assembly in the high-efficiency impeller structure of the centrifugal pump of this utility model.

[0027] Explanation of icon numbers:

[0028] 1. Disk; 2. Blade;

[0029] 101, Center hole; 1011, Pin hole; 1012, Reinforcing ring;

[0030] 201. Mounting base; 2011. Mounting slot;

[0031] 202. Fixing base; 2021. Fixing slot;

[0032] 20211, Sealing cap;

[0033] 203. Card slot; 2031. Card connector assembly;

[0034] 20311, Mounting bracket; 20312, Sliding pin; 20313, Spring sleeve;

[0035] 204, Limiting post; 2041, Limiting groove. Detailed Implementation

[0036] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0037] Please refer to Figures 1 to 6 As shown, an embodiment of the present invention provides a high-efficiency impeller structure for a centrifugal pump, comprising: a disc 1, on which a plurality of detachable blades 2 are arranged at equal intervals;

[0038] In order to reduce costs and friction losses, thereby improving the efficiency of the centrifugal pump, the blades 2 of this utility model can be selected as 3-4 pieces.

[0039] Please refer to Figures 1 to 6 As shown, a central hole 101 is provided at the center of the wheel 1, and a pin hole 1011 is provided on the side of the inner wall of the central hole 101.

[0040] Please refer to Figures 1 to 6 As shown, a mounting base 201 is fixedly connected to the side of the blade 2, and a mounting groove 2011 matching the mounting base 201 is provided on the wheel 1 at the position corresponding to the mounting base 201.

[0041] Please refer to Figures 1 to 6 As shown, a fixing seat 202 is fixedly connected to the side of the mounting base 201, and a fixing groove 2021 matching the fixing seat 202 is provided on the inner wall of the mounting groove 2011 at the position corresponding to the fixing seat 202.

[0042] Please refer to Figures 1 to 6 As shown, a slot 203 is provided on the inner wall of the fixing base 202, and a snap-fit ​​component 2031 is provided on the inner wall of the fixing groove 2021 at the position corresponding to the slot 203.

[0043] Please refer to Figures 1 to 6 As shown, the snap-fit ​​assembly 2031 includes a mounting bracket 20311 fixedly connected to the inner wall of the fixing groove 2021. A sliding snap pin 20312 matching the snap groove 203 is slidably connected to the mounting bracket 20311, and a spring 20313 is sleeved on the sliding snap pin 20312.

[0044] Please refer to Figures 1 to 6 As shown, two symmetrically arranged limiting posts 204 are also fixedly connected to the side of the mounting base 201, and a limiting groove 2041 matching the limiting post 204 is provided on the inner wall of the mounting groove 2011 at the position corresponding to the limiting post 204.

[0045] By adopting the above technical solution, the stability of the mounting base 201 being inserted into the mounting groove 2011 is increased by setting the limiting post 204 and the limiting groove 2041, thereby increasing the stability of the blade 2 being installed on the wheel disk 1.

[0046] Please refer to Figures 1 to 6 As shown, a reinforcing ring 1012 is provided on the wheel 1 at the position corresponding to the center hole 101;

[0047] By adopting the above technical solution, the structural strength of the wheel 1 is increased by setting the reinforcing ring 1012.

[0048] Please refer to Figures 1 to 6 As shown, a sealing cover 20211 matching the fixing groove 2021 is provided on the side of the fixing groove 2021;

[0049] By adopting the above technical solution, the sealing cover 20211 is set to seal and cover the fixing groove 2021.

[0050] In summary, the specific working principle of the high-efficiency impeller structure of the centrifugal pump of this utility model is as follows:

[0051] Detachable blade design: The core of the impeller structure lies in the detachable blades 2 mounted on its disk 1. Each blade 2 is installed by its side mounting seat 201 matching the mounting groove 2011 on the disk 1. The fixing seat 202 on the mounting seat 201 cooperates with the fixing groove 2021 in the mounting groove 2011 and is secured by the snap-fit ​​assembly 2031. The snap-fit ​​assembly 2031 includes a sliding pin 20312 and a spring 20313. Under the action of the spring 20313, the sliding pin 20312 can automatically snap into the slot 203 on the inner wall of the fixing seat 202, thereby firmly fixing the blade 2.

[0052] Enhanced Installation Stability: To improve the installation stability of blade 2 on the wheel 1, a structure of limiting post 204 and limiting groove 2041 was designed. The limiting post 204 on the mounting base 201 is inserted into the limiting groove 2041 in the mounting groove 2011, which increases the lateral stability of blade 2 during installation and prevents it from shifting or loosening during use.

[0053] Convenient disassembly and replacement: When a blade 2 needs to be replaced due to wear or damage, simply pull the sliding pin 20312 gently to disengage it from the slot 203, thus releasing the engagement with the mounting base 202. The damaged blade 2 can then be removed from the mounting slot 2011 and replaced with a new blade. This design avoids the need to replace the entire impeller due to damage to a single blade, saving costs and improving maintenance efficiency.

[0054] Structural strength and sealing performance: A reinforcing ring 1012 is provided at the center hole 101 of the impeller 1, which increases the structural strength of the impeller and improves its ability to withstand high-speed rotation and fluid impact. At the same time, a sealing cover 20211 is provided on the side of the fixing groove 2021 to seal and cover the fixing groove 2021, preventing fluid or impurities from entering the fixing area and affecting the fixing effect of the blades and the operating efficiency of the pump.

[0055] In summary, this utility model, through the detachable blade design and measures to enhance installation stability, achieves efficient and convenient maintenance of the centrifugal pump impeller, thereby improving the overall efficiency and practicality of the centrifugal pump.

[0056] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A high-efficiency impeller structure for a centrifugal pump, comprising a disc (1) installed inside the centrifugal pump housing, characterized in that, The wheel (1) is provided with several detachable blades (2) arranged at equal intervals; A mounting base (201) is fixedly connected to the side of the blade (2). A mounting groove (2011) matching the mounting base (201) is provided on the wheel (1) at a position corresponding to the mounting base (201). A fixing base (202) is fixedly connected to the side of the mounting base (201). A fixing groove (2021) matching the fixing base (202) is provided on the inner wall of the mounting groove (2011) at a position corresponding to the fixing base (202). A slot (203) is provided on the inner wall of the fixing base (202). A snap-fit ​​component (2031) is provided on the inner wall of the fixing groove (2021) at a position corresponding to the slot (203). The snap-fit ​​assembly (2031) includes a mounting bracket (20311) fixedly connected to the inner wall of the fixing groove (2021). A sliding snap pin (20312) matching the snap groove (203) is slidably connected to the mounting bracket (20311), and a spring sleeve (20313) is sleeved on the sliding snap pin (20312).

2. The high-efficiency impeller structure for a centrifugal pump according to claim 1, characterized in that: The wheel (1) has a central hole (101) at its center, and a pin hole (1011) is provided on the side of the inner wall of the central hole (101).

3. The high-efficiency impeller structure for a centrifugal pump according to claim 2, characterized in that: The mounting base (201) is also fixedly connected to two symmetrically arranged limiting posts (204), and the inner wall of the mounting groove (2011) is provided with a limiting groove (2041) that matches the limiting post (204) at the position corresponding to the limiting post (204).

4. The high-efficiency impeller structure for a centrifugal pump according to claim 3, characterized in that: A reinforcing ring (1012) is provided on the wheel (1) at a position corresponding to the center hole (101).

5. The high-efficiency impeller structure for a centrifugal pump according to claim 4, characterized in that: The side of the fixing groove (2021) is provided with a sealing cap (20211) that matches the fixing groove (2021).

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