A water bucket type runner with water separation blade reinforcing ribs

Abstract

The present application belongs to the technical field of bucket wheel, and particularly relates to a bucket wheel with water distribution blade reinforcing ribs. The technical scheme is as follows: a bucket wheel with water distribution blade reinforcing ribs, comprising a bucket wheel body, a plurality of buckets are arranged on the bucket wheel body, a water distribution blade is arranged in the middle of each bucket, and reinforcing ribs are arranged between the position corresponding to the water distribution blade of the back of a front bucket and the water distribution blades of adjacent rear buckets. The present application provides a bucket wheel with water distribution blade reinforcing ribs, the structural strength of the bucket wheel is increased by arranging reinforcing ribs between adjacent two buckets, so that the performance and service life of the bucket wheel turbine are improved.

Description

Technical Field

[0001] This invention belongs to the field of water bucket impeller technology, and specifically relates to a water bucket impeller with reinforcing ribs for water diversion blades. Background Technology

[0002] A bucket turbine is a type of hydraulic machinery that uses high-speed water flow to impact the runner and generate power. The buckets are important components that support the jet flow and have a significant impact on the performance of the unit.

[0003] Patent application CN202110710244.9 discloses a novel water turbine impact runner structure, comprising a split-type water turbine impact runner composed of water buckets, a hub, side plates, and bolts. The water buckets have arc-shaped protruding support surfaces on their backs. Each water bucket is connected to a dovetail groove arrayed on the outer diameter of the hub via an interference fit through a dovetail boss at its bottom. The hub has a set of threaded holes at its diameter. The side plates have a set of circular holes corresponding to the threaded holes in the hub, and bolts pass through these holes. The side plates are positioned on both sides of the hub, and the water buckets are held in place by retaining rings on their edges, thus connecting the side plates, water buckets, and hub into a single unit. This design features high strength, wear resistance, and erosion resistance, while also being inexpensive to manufacture and easy to maintain and replace.

[0004] Conventional bucket turbines have two buckets directly connected, with no supporting structure at the back, making it a weak point in the structure and prone to damage during actual operation. Summary of the Invention

[0005] In order to solve the above-mentioned problems in the prior art, the purpose of the present invention is to provide a water bucket turbine with reinforcing ribs for water distribution blades. By adding reinforcing ribs between two adjacent water buckets, the structural strength of the turbine is increased, thereby improving the performance and service life of the water bucket turbine.

[0006] The technical solution adopted in this invention is as follows: A water bucket type impeller with reinforcing ribs and water-dividing blades includes an impeller body, a plurality of water buckets on the impeller body, a water-dividing blade in the middle of the water bucket, and reinforcing ribs on the back of the previous water bucket corresponding to the position of the water-dividing blade and between the water-dividing blades of the adjacent next water bucket.

[0007] The reinforcing ribs on the water-dividing blade of this invention have an airfoil-like feature, which can better guide the incoming flow. The water-dividing blade of this invention controls the profile of the outer side of the reinforcing rib by controlling the distance R. During the design process, the distance R can be adjusted according to the actual situation of the water-pull impeller to change the shape of the reinforcing rib of the water-dividing blade, thereby better guiding the incoming flow.

[0008] The reinforcing ribs of the water-dividing blade of the present invention increase the strength of the turbine structure by connecting two adjacent water buckets, thereby improving the performance and lifespan of the bucket turbine.

[0009] As a preferred embodiment of the present invention, the point where the outer side of the reinforcing rib coincides with the front of the next water tank is the first endpoint, the point where the outer side of the reinforcing rib coincides with the back of the previous water tank is the third endpoint, the inner sides of the reinforcing rib converge to form the second endpoint, and the shape of the reinforcing rib is formed by the first endpoint, the second endpoint, and the third endpoint.

[0010] As a preferred embodiment of the present invention, the first endpoint is located at a position 1 / 3 of the distance from the tip of the water-dividing blade on the front cross section of the subsequent water bucket.

[0011] As a preferred embodiment of the present invention, a trajectory circle is drawn with the center point of the main body of the impeller as the center and the distance from the first endpoint to the center of the main body of the impeller as the radius. The intersection of the trajectory circle and the profile of the back of the previous water bucket is the third endpoint.

[0012] As a preferred embodiment of the present invention, the second endpoint is located at the intersection of the water-dividing blade sections of two adjacent water buckets.

[0013] The first endpoint is located one-third of the way from the tip of the water-dividing blade on the front section of the next bucket. After determining the position of the first endpoint, a circle with radius R is drawn using the distance R from the first endpoint to the center of the bucket. The intersection of this circle and the profile of the back of the previous bucket is the third endpoint. This arrangement of reinforcing ribs increases the structural strength of the ribs to adjacent buckets, thereby improving the performance and lifespan of the bucket turbine. Furthermore, placing the reinforcing ribs at the above locations prevents them from affecting the water flow, ensuring that the ribs can better guide the incoming flow.

[0014] As a preferred embodiment of the present invention, the first endpoint and the second endpoint are connected along the water-dividing blade profile on the front surface of the next water bucket.

[0015] As a preferred embodiment of the present invention, the second endpoint and the third endpoint are connected along the water-dividing blade profile on the back of the previous water bucket.

[0016] As a preferred embodiment of the present invention, the arc is a segment of the circular trajectory of the line connecting the first endpoint and the third endpoint.

[0017] The first and second endpoints are connected along the front profile of the water bucket, and the second and third endpoints are connected along the back profile of the water bucket. The line connecting the first and third endpoints is an arc segment with radius R.

[0018] As a preferred embodiment of the present invention, the outline of the reinforcing rib is located on the plane where the symmetry center of several water-dividing blades is located, and the outline of the reinforcing rib is stretched symmetrically on both sides, with a single-sided stretch value of 1 to 2 mm.

[0019] As a preferred embodiment of the present invention, the two outer corners of the reinforcing rib are rounded, and the rounding size is 1-2mm.

[0020] After the reinforcing rib outline is drawn, the outline is symmetrically stretched on both sides. The initial stretch value on one side is determined to be 1-2 mm, which can be varied according to the diameter and thickness of the water tank section circle. After stretching, the edges of the outline between the first and second endpoints are rounded, with a rounding size of 1-2 mm, which varies according to the stretch value of the outline.

[0021] The beneficial effects of this invention are as follows: 1. The reinforcing ribs on the water-dividing blade of the present invention have an airfoil-like feature, which can better guide the incoming flow. The water-dividing blade of the present invention controls the profile of the outer side of the reinforcing rib by controlling the distance R. During the design, the distance R can be adjusted according to the actual situation of the water-pull impeller to change the shape of the reinforcing rib of the water-dividing blade, thereby better guiding the incoming flow.

[0022] 2. The reinforcing ribs of the water-dividing blade of the present invention increase the strength of the turbine structure by connecting two adjacent water buckets, thereby improving the performance and lifespan of the bucket turbine. Attached Figure Description

[0023] Figure 1 This is a partial schematic diagram of the present invention; Figure 2 This is a schematic diagram of the outline of the reinforcing rib; Figure 3 This is a schematic diagram showing the outline of the reinforcing ribs; Figure 4 This is a schematic diagram of the rounded edges of the reinforcing rib; Figure 5 This is a schematic diagram of the rotating wheel.

[0024] In the diagram: 1-Rotator body; 2-Water bucket; 3-Water divider; 4-Reinforcing rib; A-First end point; B-Second end point; C-Third end point. Detailed Implementation

[0025] 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.

[0026] 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. It should be noted that, unless otherwise specified, the embodiments and features described in the embodiments of the invention can be combined with each other.

[0027] like Figures 1-5 As shown, the water bucket 2 type impeller with water-dividing blade 3 and reinforcing rib 4 in this embodiment includes an impeller body 1, a plurality of water buckets 2 are provided on the impeller body 1, a water-dividing blade 3 is provided in the middle of the water bucket 2, and a reinforcing rib 4 is provided between the back of the previous water bucket 2 corresponding to the position of the water-dividing blade 3 and between the water-dividing blades 3 of the adjacent next water bucket 2.

[0028] The reinforcing rib 4 on the water-dividing blade 3 of this invention has an airfoil-like feature, which can better guide the incoming flow. The water-dividing blade 3 of this invention controls the profile of the outer side of the reinforcing rib 4 by controlling the distance R. During the design, the distance R can be adjusted according to the actual situation of the water-fed impeller 2, thereby changing the shape of the reinforcing rib 4 of the water-dividing blade 3 and thus better guiding the incoming flow.

[0029] The reinforcing rib 4 of the water-dividing blade 3 of the present invention increases the strength of the turbine structure by connecting two adjacent water buckets 2, thereby improving the performance and lifespan of the water bucket 2 type turbine.

[0030] Specifically, the outer side of the reinforcing rib 4 coincides with the front of the next water tank 2 at the first endpoint A, the outer side of the reinforcing rib 4 coincides with the back of the previous water tank 2 at the third endpoint C, and the inner side of the reinforcing rib 4 converges to form the second endpoint B. The shape of the reinforcing rib 4 is formed by the first endpoint A, the second endpoint B, and the third endpoint C.

[0031] The first endpoint A is located on the front water-dividing blade 3 of the next water bucket 2 at a position 1 / 3 away from the tip of the water-dividing blade 3.

[0032] Draw a trajectory circle with the center point of the main body 1 of the rotor as the center and the distance from the first endpoint A to the center of the main body 1 of the rotor as the radius. The intersection of the trajectory circle and the back profile of the previous water bucket 2 is the third endpoint C.

[0033] The second endpoint B is located at the intersection of the cross sections of the water-dividing blades 3 of two adjacent water buckets 2.

[0034] The first endpoint A is located at 1 / 3 of the distance from the tip of the water-dividing blade 3 on the front cross-section of the subsequent water bucket 2. After determining the position of the first endpoint A, a circle with radius R is drawn using the distance from the first endpoint A to the center of the water bucket 2. The intersection of this circle and the profile of the back of the preceding water bucket 2 is the third endpoint C. This arrangement of the reinforcing rib 4 increases the structural strength of the reinforcing rib 4 to the two adjacent water buckets 2, thereby improving the performance and lifespan of the water bucket 2 turbine. Furthermore, placing the reinforcing rib 4 at the above-mentioned position avoids it affecting the water flow, ensuring that the reinforcing rib 4 can better guide the incoming flow.

[0035] Setting the outline of reinforcing rib 4: The first endpoint A and the second endpoint B are connected along the water-dividing blade 3-shaped line on the front side of the next water bucket 2.

[0036] The second endpoint B and the third endpoint C are connected along the water-dividing blade 3-shaped line on the back of the previous water bucket 2.

[0037] An arc segment on the circle of the line connecting the first endpoint A and the third endpoint C.

[0038] The first endpoint A and the second endpoint B are connected along the front profile of the water tank 2, and the second endpoint B and the third endpoint C are connected along the back profile of the water tank 2. The line connecting the first endpoint A and the third endpoint C is an arc segment with radius R.

[0039] Furthermore, the outline of the reinforcing rib 4 is located on the plane where the centers of symmetry of several water-dividing blades 3 are located, and the outline of the reinforcing rib 4 is stretched symmetrically on both sides, with a single-sided stretch value of 1 to 2 mm.

[0040] The outer corners of the reinforcing rib 4 are rounded, with a rounding size of 1-2 mm.

[0041] After the outline of reinforcing rib 4 is drawn, the outline is symmetrically stretched on both sides. The initial stretch value on one side is determined to be 1-2 mm, which can be varied according to the diameter and thickness of the water hopper section 2. After stretching, the edges of the outline between the first endpoint A and the second endpoint B are rounded, with a rounding size of 1-2 mm, which varies according to the stretch value of the outline.

[0042] This invention relates to a water bucket 2 with a water-dividing blade 3 and reinforcing rib 4. The water bucket 2 includes a front and a back surface. Crucially, a reinforcing rib 4 is connected at the center between two adjacent water buckets 2, and its cross-sectional shape is similar to an airfoil. The reinforcing rib 4 of the water-dividing blade 3 in this invention not only strengthens the structural strength of the water-dividing blade 3, but also guides the incoming flow, mitigating the effects of erosion and damage.

[0043] Example: The reinforcing rib 4 is located in the center of the two water tanks 2, and its cross-sectional shape is controlled by three curve segments AB, BC, and AC. Point A is located on the front water-dividing blade 3 of the latter water tank 2, at a position 1 / 3 of the distance from the tip of the water-dividing blade 3; point B is the intersection point of the cross-sections of the water-dividing blade 3 of the two adjacent water tanks 2; after determining the position of point A, a circle with a radius R is drawn with the distance from point A to the center of the water tank 2 as the radius. The intersection of this circle with the back profile of the former water tank 2 is point C. Segment AB is connected along the front profile of the water tank 2, segment BC is connected along the back profile of the water tank 2, and segment AC is an arc segment with a radius of R.

[0044] After drawing the reinforcing rib 4-shaped line, symmetrically stretch the line on both sides. The initial stretch value on one side is determined to be 1-2 mm, which can be varied according to the diameter and thickness of the water hopper section 2. After stretching, round the edges of section AC on both sides, with a rounding dimension of 1-2 mm, which varies according to the stretch value of the line.

[0045] The reinforcing rib 4 has an airfoil shape, which can better guide the incoming flow. The water-dividing blade 3 controls the profile of the AC section of the reinforcing rib 4 by controlling the distance R. During the design, the distance R can be adjusted according to the actual situation of the water bucket 2 type impeller to change the shape of the reinforcing rib 4, thereby better guiding the incoming flow.

[0046] The reinforcing rib 4 increases the strength of the runner structure by connecting two adjacent buckets 2, thereby improving the performance and lifespan of the bucket turbine.

[0047] This invention is not limited to the above-described optional embodiments. Anyone can derive other various forms of products under the guidance of this invention. However, regardless of any changes made in their shape or structure, any technical solution that falls within the scope of the claims of this invention shall be protected by this invention.

Claims

1. A water-bucket type impeller with reinforcing ribs for water-dividing blades, characterized in that: It includes a main body (1), a number of water buckets (2) are provided on the main body (1), a water-dividing blade (3) is provided in the middle of the water bucket (2), and a reinforcing rib (4) is provided between the back of the previous water bucket (2) corresponding to the position of the water-dividing blade (3) and the water-dividing blade (3) of the adjacent next water bucket (2).

2. A water-spreading impeller with reinforcing ribs and water-dividing blades according to claim 1, characterized in that: The outer side of the reinforcing rib (4) coincides with the front of the next water bucket (2) at the first endpoint (A), the outer side of the reinforcing rib (4) coincides with the back of the previous water bucket (2) at the third endpoint (C), and the inner side of the reinforcing rib (4) merges to form the second endpoint (B). The shape of the reinforcing rib (4) is formed by the first endpoint (A), the second endpoint (B) and the third endpoint (C).

3. A water-fist type impeller with reinforcing ribs and water-dividing blades according to claim 2, characterized in that: The first endpoint (A) is located at a position 1 / 3 away from the tip of the water-dividing blade (3) on the cross section of the front water-dividing blade (3) of the next water bucket (2).

4. A water-spreading impeller with reinforcing ribs according to claim 3, characterized in that: With the center point of the main body of the impeller (1) as the center and the distance from the first endpoint (A) to the center of the main body of the impeller (1) as the radius, draw a trajectory circle. The intersection of the trajectory circle and the back profile of the previous water bucket is the third endpoint.

5. A water-spreading impeller with reinforcing ribs and water-dividing blades according to claim 2, characterized in that: The second endpoint (B) is located at the intersection of the cross sections of the water-dividing blades (3) of two adjacent water buckets (2).

6. A water-fist type impeller with reinforcing ribs for water-dividing blades according to claim 2, characterized in that: The first endpoint (A) and the second endpoint (B) are connected along the water-dividing blade (3) shape line on the front side of the next water bucket (2).

7. A water-spreading impeller with reinforcing ribs according to claim 2, characterized in that: The second endpoint (B) and the third endpoint (C) are connected along the water-dividing blade (3) profile on the back of the previous water bucket (2).

8. A water-spreading impeller with reinforcing ribs according to claim 4, characterized in that: An arc segment on the circle of the line connecting the first endpoint (A) and the third endpoint (C).

9. A water-spreading impeller with reinforcing ribs according to claim 1, characterized in that: The outline of the reinforcing rib is located on the plane where the centers of symmetry of several water-dividing blades are located. The outline of the reinforcing rib is stretched symmetrically on both sides, with a single-sided stretch value of 1 to 2 mm.

10. A water-spreading impeller with reinforcing ribs according to claim 9, characterized in that: The outer corners of the reinforcing rib are rounded, with a rounding dimension of 1-2 mm.

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