Runner runner type guide vane and centrifugal pump

Abstract

The utility model discloses a rotating wheel runner type guide vane and a centrifugal pump, and particularly relates to a centrifugal pump, which comprises a rotating wheel, and the rotating wheel is divided into a base band disc body and a halfpace part which is positioned on the upper surface of the base band disc body and is arranged in the middle according to the structure; the upper surface of the base band disc body is fixedly provided with a plurality of flow guide groove pieces which are arranged around the periphery of the halfpace part in an array mode. The whole flow guide groove piece is of a supporting foot trapezoid structure, and the inclined face of the supporting foot trapezoid structure is arranged from the low position to the high position in the rotating direction of the rotating wheel. A plurality of first wave plates which are arranged in a circumferential array are fixedly arranged on the outer side of the halfpace part, each first wave plate is of an arc-shaped structure, and the direction of the inner arc surface of each first wave plate is opposite to the rotating direction of the rotating wheel; a groove is formed in the end face of the halfpace part, and a plurality of first wave plates which are arranged in a circumferential array mode are fixedly installed in the groove. The runner runner type guide vane is simple in structure and has a multi-stage pushing structure, so that the liquid conveying capacity of the runner runner type guide vane is better.

Description

Technical Field

[0001] This utility model relates to centrifugal pumps, specifically to a rotor flow channel type guide vane and centrifugal pump. Background Technology

[0002] The impeller guide vane is an actuator in a centrifugal pump that drives the liquid to flow and thus transport the liquid. The efficiency of a centrifugal pump is determined not only by the power of the motor but also by the structure of the impeller guide vane.

[0003] Therefore, it is hoped that the design of impeller-type guide vanes to improve the working efficiency of centrifugal pumps can be well resolved. Utility Model Content

[0004] The purpose of this invention is to provide a rotary guide vane and centrifugal pump to solve the above-mentioned problems.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A rotary flow channel type guide vane includes a rotary vane, which is structurally divided into a base plate disc and a stepped section located on the upper surface of the base plate disc and centrally arranged.

[0007] The upper surface of the baseband disk is fixedly provided with a plurality of flow guide grooves arranged in a circumferential array with respect to the stepped section;

[0008] The guide channel component is an overall trapezoidal structure with legs, and the inclined surfaces of the trapezoidal structure are arranged from low to high along the rotation direction of the wheel.

[0009] Multiple first wave plates arranged in a circular array are fixedly installed on the outer side of the ladder section. The first wave plates have an arc-shaped structure and the inner arc surface faces the opposite direction to the rotation direction of the wheel.

[0010] A groove is provided on the end face of the ladder section, and multiple second plates arranged in a circular array are fixedly installed in the groove.

[0011] Preferably, the upper surface of the guide channel is a recessed structure, and one inner edge of the recessed structure facing outward is a first rounded corner edge, while the inner edge located at the higher position is a second rounded corner edge.

[0012] Preferably, the guide channel is an arc-shaped structure with its inner arc facing the outer side of the rotor.

[0013] Preferably, the outer contour of the baseband disk is consistent with the outer arc surface of the plurality of flow guide grooves.

[0014] Preferably, the length of the cross-section of the first wave plate is 2-3 cm, and its end is connected to the guide channel.

[0015] Preferably, the end section of the first wave plate is at the same level as the upper surface of the stepped section.

[0016] In the above technical solution, the impeller-type guide vane and centrifugal pump provided by this utility model have the following beneficial effects: the height difference between the stepped section and the base plate is formed, and a set of guiding structures are formed by the guide groove on the base plate. The first wave plate on the inclined surface of the stepped section forms a set of guiding structures, and the first wave plate on the end face of the stepped section forms a set of guiding structures. The guide groove draws in external liquid, which is accelerated by the inclined guidance of the first wave plate. Then, the first wave plate arranged in a plane accelerates the liquid again, thereby increasing the liquid delivery efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the overall structure provided for an embodiment of this utility model;

[0019] Figure 2 This is a top view of the structure provided for an embodiment of the present utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Rotary wheel; 11. Baseband disc; 12. Trapezoidal section; 121. Groove; 2. Flow guide; 22. First rounded corner edge; 23. Second rounded corner edge; 3. First wave plate; 4. Second wave plate. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1-2 As shown, a rotary flow channel type guide vane is a component of a centrifugal pump. Specifically, the rotary flow channel type guide vane is divided into a base plate disc 11 and a stepped section 12 located in the center of its upper surface.

[0024] Multiple flow guide grooves 2 are carefully arranged on the upper surface of the baseband disc 11. These flow guide grooves are arranged in a circular array with the trapezoidal section 12 as the center. The flow guide grooves 2 are designed as a support trapezoidal structure, and their inclined surfaces extend cleverly from the low position to the high position, in accordance with the rotation direction of the rotor 1.

[0025] Multiple first wave plates 3 are fixedly installed on the periphery of the ladder section 12. They are presented in an arc shape, and the inner arc surface faces the opposite direction of the rotation of the wheel, forming an effective flow guiding surface. In addition, a groove 121 is provided on the end face of the ladder section 12, in which multiple second wave plates 4 are also arranged in a circumferential array to further enhance the flow guiding effect.

[0026] It is worth noting that the upper surface of the flow guide 2 adopts a recessed design, in which the inner edge facing outward is carefully polished into a first rounded corner edge 22, while the inner edge located at the higher position is designed as a second rounded corner edge 23. In addition, the flow guide 2 itself also has an arc-shaped structure, with its inner arc naturally facing the outer periphery of the wheel, ensuring that the outer contour of the baseband disc 11 is perfectly unified with the outer arc surface of the flow guide 2.

[0027] To further explain, the cross-sectional length of the first wave plate 3 is controlled between 2 and 3 centimeters, and its end is tightly connected to the guide channel 2. The end section of the first wave plate 3 is kept horizontal with the upper surface of the stepped section 12, ensuring a smooth transition of the fluid.

[0028] In summary, this design cleverly utilizes the height difference between the stepped section 12 and the baseband disc 11, as well as the flow guide trough 2 on the baseband disc, the first wave plate 3 on the inclined surface of the stepped section, and the second wave plate 4 on the end face, to jointly form a multi-layered flow guide structure. The flow guide trough 2 is responsible for introducing external liquid, the first wave plate 3 guides and accelerates the fluid through its inclined surface, and the planar second wave plate 4 further accelerates the fluid, thereby significantly improving the liquid transport efficiency.

[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A rotary flow channel type guide vane, characterized in that, It includes a rotating wheel (1), which is divided into a base plate (11) and a stepped platform (12) located on the upper surface of the base plate (11) and arranged in the center. The upper surface of the baseband disk (11) is fixedly provided with a plurality of flow guide grooves (2) arranged in a circumferential array about the ladder section (12). The guide channel component (2) is an overall trapezoidal structure with legs, and the inclined surface of the trapezoidal structure is arranged from low to high along the rotation direction of the wheel (1); Multiple first wave plates (3) arranged in a circular array are fixedly provided on the outer side of the ladder section (12). The first wave plates (3) are arc-shaped structures, and the inner arc surface faces the opposite direction to the rotation direction of the wheel (1). A groove (121) is provided on the end face of the ladder section (12), and a plurality of second plates (4) arranged in a circular array are fixedly installed in the groove (121).

2. The impeller-type guide vane according to claim 1, characterized in that, The upper surface of the guide groove (2) is a recessed structure, and one inner edge of the recessed structure facing outward is a first rounded corner edge (22), while the inner edge located at the high position is a second rounded corner edge (23).

3. The impeller-type guide vane according to claim 1, characterized in that, The guide groove (2) has an arc-shaped structure, with its inner arc facing the outer side of the wheel (1).

4. The impeller-type guide vane according to claim 1, characterized in that, The outer contour of the baseband disk (11) is consistent with the outer arc surface of the plurality of flow guide grooves (2).

5. A rotary flow channel type guide vane according to claim 1, characterized in that, The first wave plate (3) has a cross-sectional length of 2-3 cm and its end is connected to the guide groove (2).

6. A rotary flow channel guide vane according to claim 1, characterized in that, The end section of the first wave plate (3) is at the same level as the upper surface of the ladder section (12).

7. A centrifugal pump, characterized in that, Includes a rotary flow channel guide vane as described in any one of claims 1-6.

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