Water throwing ring for water supply pump

Abstract

A kind of water ring for water supply pump, including ring body, the ring body is centrally provided with mounting hole, the mounting hole outside is provided with flow guide lug, the ring body outside is integrally formed with fixed ring, the fixed ring is obliquely installed in the ring body outside, the fixed ring is provided with flow guide groove, the fixed ring outside is connected with arc ring, the arc ring is provided with water throwing groove, the utility model sets up flow guide lug of circular table type and flow guide vane of circle center distribution, can effectively initial direction and convergence to the water flow of leakage, water flow can flow according to predetermined direction, improve the direction effect of water flow, circular groove of annular array distribution on fixed ring, not only reduce the weight of water ring, reduce the equipment operating load, and its position setting is between two groups of water throwing groove, can evenly distribute water flow into water throwing groove, ensure the stability and uniformity of water throwing process, improve the use efficiency of water throwing disc.

Description

Technical Field

[0001] This utility model relates to the field of water-throwing ring technology, and in particular to a water-throwing ring for a water pump. Background Technology

[0002] The feedwater pump is a key piece of equipment in the boiler feedwater system. Its main function is to pressurize water and deliver it into the boiler. During the operation of the feedwater pump, due to the fact that the seals of parts such as the shaft seal cannot be completely tight, a small amount of water will leak out. If this leaked water is not dealt with in time, it may enter the bearings and other components, affecting the normal operation of the feedwater pump, reducing the service life of the equipment, and even causing safety hazards. As an important component of the water pump, the water-throwing ring can promptly throw out leaked water to prevent it from adversely affecting other parts of the equipment. However, the existing water-throwing rings still have shortcomings in terms of water-throwing efficiency and flow guiding effect, and cannot meet the requirements of efficient and stable operation of the water pump.

[0003] Therefore, it is essential to provide a water-throwing ring for a water pump to address the shortcomings of existing technologies. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of existing technologies by providing a water-throwing ring for a water pump. This invention features a frustum-shaped guide protrusion and centrally distributed guide vanes, which effectively guide and converge leaking water flow, ensuring it flows in a predetermined direction and improving the guiding effect. The inclined installation of the fixed ring and the design of the arc-shaped guide groove connecting end-to-end with the water-throwing trough conform to the flow law of water, reducing energy loss during flow and allowing water to flow more smoothly from the guide groove into the water-throwing trough, greatly improving the water-throwing efficiency. The circular grooves distributed in a ring array on the fixed ring not only reduce the weight of the water-throwing ring and lower the operating load of the equipment, but their position between the two sets of water-throwing troughs also ensures the even distribution of water flow into the troughs, guaranteeing the stability and uniformity of the water-throwing process and improving the utilization efficiency of the water-throwing plate.

[0005] The above-mentioned objectives of this utility model are achieved through the following technical means.

[0006] A water-throwing ring for a water pump is provided, including a ring body, an installation hole in the center of the ring body, a flow-guiding protrusion outside the installation hole, a fixing ring integrally formed on the outer side of the ring body, the fixing ring being obliquely installed on the outer side of the ring body, a flow-guiding groove on the fixing ring, and an arc-shaped ring connected to the outside of the fixing ring, the arc-shaped ring having a water-throwing groove.

[0007] Specifically, the guide bump is shaped like a frustum, and several guide vanes are installed on the guide bump with a central distribution.

[0008] Specifically, the fixed ring has circular grooves arranged in a ring around its perimeter, and the inside of the circular grooves is inclined and connected to the arc-shaped ring.

[0009] Specifically, the guide channel is arc-shaped and is connected end to end to the water-throwing channel.

[0010] Specifically, the circular trough corresponds to the two sets of water-throwing troughs.

[0011] This invention features a frustum-shaped guide protrusion and centrally distributed guide blades, which effectively guide and converge leaking water flow, ensuring it flows in a predetermined direction and improving the guiding effect. The inclined installation of the fixing ring and the design of the arc-shaped guide groove connecting the two ends of the water-throwing trough conform to the flow law of water, reducing energy loss during the flow process and allowing water to flow more smoothly from the guide groove into the water-throwing trough, greatly improving the water-throwing efficiency. The circular grooves distributed in an annular array on the fixing ring not only reduce the weight of the water-throwing ring and lower the operating load of the equipment, but also, by positioning them between the two sets of water-throwing troughs, evenly distribute the water flow into the water-throwing trough, ensuring the stability and uniformity of the water-throwing process and improving the utilization efficiency of the water-throwing plate. Attached Figure Description

[0012] The present invention will be further described with reference to the accompanying drawings, but the content of the drawings does not constitute any limitation on the present invention.

[0013] Figure 1 This is a three-dimensional view of the overall structure of a water-throwing ring for a water pump according to this utility model.

[0014] Figure 2 This is a top view of a water-throwing ring for a water pump according to this utility model.

[0015] from Figures 1 to 2 Including: 1. Ring body; 2. Mounting holes; 3. Guide bumps; 4. Retaining ring; 5. Flow guide channel; 6. Arc-shaped ring; 7. Spin trough; 8. Guide vanes; 9. Circular groove. Detailed Implementation

[0016] The present invention will be further described in conjunction with the following embodiments.

[0017] Example 1. like Figure 1-2As shown, a water-throwing ring for a water pump includes a ring body 1. The ring body 1 is made of high-strength alloy material, which has good wear resistance and corrosion resistance and can adapt to the harsh environment in which the water pump operates. A mounting hole 2 is provided in the center of the ring body 1. The diameter of the mounting hole 2 matches the diameter of the water pump shaft, and the hole wall is precision ground with a surface roughness of no more than 0.8μm to reduce friction with the pump shaft and ensure concentricity during rotation.

[0018] A flow-guiding protrusion 3 is provided on the outside of the mounting hole 2. The flow-guiding protrusion 3 and the ring body 1 are integrally formed to ensure connection strength. A fixing ring 4 is integrally formed on the outside of the ring body 1. The thickness of the fixing ring 4 is 1.2-1.5 times the thickness of the ring body 1, which enhances the stability of the overall structure. The fixing ring 4 is installed at an angle of 30° to 45° on the outside of the ring body 1. This angle design has been optimized by fluid dynamics simulation to maximize the use of centrifugal force to guide the water flow to the outside. The fixed ring 4 is provided with a guide groove 5. The depth of the guide groove 5 is 2-5mm and the width is 5-8mm. It can be adapted to the leakage of the water pump. The fixed ring 4 is connected to an arc ring 6. The curvature of the arc ring 6 matches the inclination angle of the fixed ring 4, so that the connection between the two is smooth and the water flow impact is reduced. The arc ring 6 is provided with a water-throwing groove 7. There are 6-12 water-throwing grooves 7, which are evenly distributed on the arc ring 6 to ensure the uniformity of water throwing. As a preferred technical solution of this utility model, the flow guide protrusion 3 is in the shape of a frustum. The diameter of the upper base of the frustum is 1.5-2 times the diameter of the mounting hole 2, the diameter of the lower base is 1.2-1.3 times the diameter of the upper base, and the height is 5-10mm. Several flow guide blades 8 are installed on the flow guide protrusion 3 with a circularly distributed center. The number of flow guide blades 8 is 4-8, the blade thickness is 1-2mm, and they are connected to the flow guide protrusion 3 by welding. The welding strength is not less than 200MPa. The frustum-shaped guide protrusion 3 can effectively converge the water flow leaking from near the mounting hole 2, making the water flow more concentrated when it spreads outwards. Meanwhile, the guide vanes 8 distributed in a circle act as a precise guiding device, guiding the water flow to the direction of the fixed ring 4, preventing the water flow from flowing randomly on the surface of the ring 1, improving the initial guiding effect of the water flow, and laying a solid foundation for the subsequent guiding and water-throwing process. As a preferred embodiment of this invention, the fixing ring 4 is surrounded by a ring array of circular grooves 9, each with a diameter of 3-6 mm. The spacing between adjacent circular grooves 9 is equal, ensuring uniform stress distribution on the structure. The circular grooves 9 are inclinedly connected to the arc-shaped ring 6, with the connection point using a rounded transition and a radius of 1-2 mm to reduce resistance loss during water flow.

[0019] The circular array of grooves 9 not only reduces the overall weight of the water-throwing ring and lowers the load on the water pump, but also, according to calculations, reduces the weight by 15%-20% compared to a structure without circular grooves 9. Furthermore, the inclined connection to the arc-shaped ring 6 allows the water flow to gain a certain acceleration force when passing through the circular grooves 9 due to the combined effect of gravity and centrifugal force, enabling it to flow better towards the arc-shaped ring 6 and preventing water from stagnating within the circular grooves 9. The guide channel 5 is arc-shaped with a radius of 1 / 3 to 1 / 2 of the radius of the fixed ring 4. Its trajectory conforms to the natural flow path of water. The guide channel 5 is connected to the water-throwing channel 7 end to end, and the transition radius at the connection is 0.5-1mm, ensuring that the water can flow from the guide channel 5 into the water-throwing channel 7 without obstruction. The arc-shaped guide channel 5 conforms to the flow characteristics of water, reducing frictional resistance during flow. Experimental tests show that the resistance is reduced by more than 25% compared to the straight guide channel 5. Furthermore, the design of the guide channel 5 and the water-throwing channel 7 being connected end-to-end forms a complete water flow channel, allowing water to flow smoothly from the guide channel 5 into the water-throwing channel 7, ensuring the continuity of the water flow and significantly improving the water-throwing efficiency. The circular trough 9 is positioned between the two sets of water-spraying troughs 7. The angle formed by the central axis of each circular trough 9 and the central axis of the two adjacent sets of water-spraying troughs 7 is equal, ensuring the balance of water flow distribution. This positioning allows the water flowing out of the circular trough 9 to be evenly distributed to the two adjacent sets of water-spraying troughs 7, avoiding the accumulation of water in a single water-spraying trough 7, making the load of each water-spraying trough 7 more balanced, further ensuring the smoothness of the water-spraying process, and also extending the service life of the arc ring 6.

[0020] This invention features a frustum-shaped guide protrusion 3 and centrally distributed guide blades 8, which effectively guide and converge leaking water flow, ensuring it flows in a predetermined direction and improving the guiding effect. The inclined installation of the fixing ring 4 and the end-to-end connection of the arc-shaped guide groove 5 with the water-throwing trough 7 conform to the flow law of water, reducing energy loss during flow and allowing water to flow more smoothly from the guide groove 5 into the water-throwing trough 7, significantly improving the water-throwing efficiency. The circular grooves 9 distributed in a ring array on the fixing ring 4 not only reduce the weight of the water-throwing ring and lower the operating load of the equipment, but their placement between the two sets of water-throwing troughs 7 also ensures the even distribution of water flow within the troughs 7, guaranteeing the stability and uniformity of the water-throwing process and improving the utilization efficiency of the water-throwing plate. Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.

Claims

1. A throw-over ring for a water supply pump, characterized in that: The device includes a ring body, a mounting hole in the center of the ring body, a flow guide protrusion outside the mounting hole, a fixing ring integrally formed on the outer side of the ring body, the fixing ring being obliquely mounted on the outer side of the ring body, a flow guide groove on the fixing ring, and an arc ring connected to the outside of the fixing ring, the arc ring having a water-throwing groove. The flow guide bump is shaped like a frustum, and several flow guide blades are installed on the flow guide bump with a centrally distributed arrangement.

2. A throw-out ring for a water pump according to claim 1, characterized in that: The fixed ring has circular grooves arranged in a ring around its perimeter, and the inside of the circular grooves is inclinedly connected to the arc-shaped ring.

3. A water-throwing ring for a water pump according to claim 2, characterized in that: The guide channel is arc-shaped and is connected end to end to the water-throwing channel.

4. A throw-out ring for a water supply pump according to claim 3, characterized in that: The circular groove corresponds to the two sets of water-spraying grooves.

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