A double channel pump body

Abstract

The utility model relates to pump body equipment technical field especially relates to a double flow channel pump body, including pump body shell and impeller, the left and right sides of pump body shell circumference surface are fixedly connected with two liquid outlet pipes and liquid inlet pipe respectively, the inside of two liquid outlet pipes all is provided with section gradually changes structure, the inner wall of two liquid outlet pipes all is fixedly connected with flow guide protruding, the inner wall of two liquid outlet pipes is spaced apart and is provided with multiple flow guide vanes along the length direction, the inside fixed connection of pump body shell has fluid branch row, and fluid branch row and pump body shell inner chamber wall and impeller between constitute outer flow channel and inner flow channel. The utility model discloses through in section gradually changes structure, flow guide protruding and flow guide vane, the mutual cooperation of multiple structure collaborative flow guiding under, make vortex reduce more thoroughly, they guide from the flow direction, vortex broken multiple dimension synergies, make vortex production amount reduce, and the flow is more stable, also reduce fluid flow resistance, thereby reduce the energy consumption of pump body, improve the operation conveying efficiency of pump body.

Description

Technical Field

[0001] This utility model relates to the field of pump body equipment technology, and in particular to a dual-flow-channel pump body. Background Technology

[0002] Dual-flow pumps are widely used in chemical, water conservancy, municipal sewage treatment, and agricultural irrigation fields due to their advantages such as large flow rate, strong anti-clogging ability, and stable operation. The basic structure of a dual-flow pump includes a pump body shell, an internal impeller chamber, an inlet pipe for water intake, and two outlet pipes for drainage. After the fluid enters the impeller chamber through the inlet pipe, it is discharged through the two independent outlet pipes under the drive of the impeller's rotation, thus realizing fluid transportation.

[0003] However, in existing dual-channel pump bodies, when the fluid flows in the outlet pipe under the action of the impeller, vortices are easily generated in the outlet pipe due to the relatively smooth inner wall and unreasonable structural design. This not only increases the resistance of fluid flow and leads to increased energy consumption, but also affects the operating efficiency of the pump body. Therefore, it is necessary to design a dual-channel pump body. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dual-channel pump body.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a dual-channel pump body, comprising a pump body shell and an impeller, wherein the impeller is rotatably connected inside the pump body shell, and two outlet pipes and an inlet pipe are fixedly connected to the left and right sides of the circumferential surface of the pump body shell, respectively, and both the outlet pipes and the inlet pipes are connected to the pump body shell. The interior of both outlet pipes is provided with a cross-sectional gradient structure, and the cross-sectional gradient structure is an integral structure with the outlet pipe. The cross-sectional gradient structure has a large inlet cross-sectional area and a small outlet cross-sectional area. Furthermore, there is a smooth transition between the inlet and outlet ends. The inner walls of both outlet pipes are fixedly connected with flow guide protrusions. The flow guide protrusions extend along the length of the outlet pipes and have an arc-shaped cross-section. Multiple flow guide blades are spaced apart along the length of the inner walls of the two outlet pipes. A fluid distribution channel is fixedly connected inside the pump housing. The fluid distribution channel has an arc structure concentric with the inner wall of the pump housing. The fluid distribution channel, the inner wall of the pump housing, and the impeller form an outer flow channel and an inner flow channel.

[0006] Furthermore, multiple reinforcing ribs are fixedly connected to the outer surface of the pump body shell, and the reinforcing ribs and the pump body shell are integrally formed.

[0007] Furthermore, the inner walls of the pump body shell, inlet pipe, and outlet pipe are all coated with an anti-corrosion coating, and the anti-corrosion coating is made of epoxy resin.

[0008] Furthermore, the bottom of the pump body shell is fixedly connected to two left and right supporting legs, and the bottom of each supporting leg is fixedly connected to a base, and the upper surface of the base is provided with a mounting hole.

[0009] Furthermore, a second arc-shaped head is provided at one end of the guide protrusion near the impeller, and the height of the guide protrusion linearly contracts synchronously with the cross-sectional gradient structure inside the liquid outlet pipe from the inlet end to the outlet end.

[0010] Furthermore, the guide vane is provided with a first arc-shaped head at one end near the impeller, and the guide vane is wedge-shaped and tapered at the other end away from the impeller with rounded edges. The guide vane is located in the middle of the liquid outlet pipe and has a streamlined straight plate structure. The height of the guide vane shrinks linearly in sync with the gradual change in the cross-section of the liquid outlet pipe.

[0011] Furthermore, there are two sets of flow guiding protrusions and one set of flow guiding blades. The two sets of flow guiding protrusions are located at the upper and lower ends of the set of flow guiding blades, respectively. The set of flow guiding protrusions at the upper end has three protrusions, and the set of flow guiding protrusions at the lower end has two protrusions. The multiple flow guiding protrusions are evenly distributed around the inner wall of the liquid outlet pipe. There are three flow guiding blades in one set. The multiple flow guiding protrusions and multiple flow guiding blades are staggered along the axial direction of the liquid outlet pipe.

[0012] This utility model has the following beneficial effects: Compared with existing technologies, this dual-channel pump body, through the coordinated flow guidance of its cross-section gradient structure, guide protrusions and guide vanes, reduces vortices more thoroughly. These structures work together from multiple dimensions, including flow direction guidance and vortex breaking, to reduce the amount of vortex generation, stabilize the flow rate, and reduce fluid flow resistance, thereby reducing the pump body's energy consumption and improving its operating efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a dual-channel pump body proposed in this utility model. Figure 2 This is a top view of the overall structure of a dual-flow-channel pump body proposed in this utility model. Figure 3 This is a schematic diagram of the structure of a dual-channel pump body after a partial rear cross-section, as proposed in this utility model. Figure 4 This is a schematic diagram of the structure of the guide protrusion and guide vanes in a dual-channel pump body proposed in this utility model.

[0014] Legend: 1. Pump body shell; 2. Inlet pipe; 3. Outlet pipe; 4. Support leg; 5. Reinforcing rib; 6. Guide protrusion; 7. Guide vane; 8. First arc head; 9. Second arc head; 10. Fluid diverter; 11. Impeller; 12. Gradual cross-section structure; 13. Anti-corrosion coating; 14. Base; 15. Mounting hole. Detailed Implementation

[0015] Reference Figure 1-4 This utility model provides a dual-channel pump body, including a pump body shell 1 and an impeller 11. The impeller 11 is rotatably connected inside the pump body shell 1. Two outlet pipes 3 and an inlet pipe 2 are fixedly connected to the left and right sides of the circumferential surface of the pump body shell 1, respectively, and both outlet pipes 3 and inlet pipes 2 are connected to the pump body shell 1. The interior of each outlet pipe 3 is provided with a cross-sectional gradient structure 12, and the cross-sectional gradient structure 12 is an integral structure with the outlet pipe 3. The cross-sectional gradient structure 12 has a large inlet cross-sectional area and a small outlet cross-sectional area, and the transition between the inlet and outlet ends is smooth. The inner wall of each outlet pipe 3 is fixedly connected with a flow guide protrusion 6, which extends along the length of the outlet pipe 3 and has an arc-shaped cross-section. The inner wall of each outlet pipe 3 is provided with multiple flow guide blades 7 spaced apart along the length. The pump body is internally fixedly connected to a fluid distribution manifold 10, which has an arc structure concentric with the inner wall of the pump body shell 1. The fluid distribution manifold 10, the inner wall of the pump body shell 1, and the impeller 11 form an outer flow channel and an inner flow channel. During operation, the dual-flow-channel pump body, as a whole, requires an external power mechanism to control the impeller 11. In specific use, the power mechanism drives the impeller 11 to operate. Under the action of the impeller 11, the fluid enters the pump body shell 1 through the inlet pipe 2, and then is distributed through the fluid distribution manifold 10, and discharged from the two outlet pipes 3 along the inner and outer flow channels respectively. During the discharge process along the outlet pipes 3, the vortex is reduced more thoroughly due to the cooperation of the cross-sectional gradient structure 12, the guide protrusion 6, and the guide blades 7.

[0016] Furthermore, multiple reinforcing ribs 5 are fixedly connected to the outer surface of the pump body shell 1, and the reinforcing ribs 5 and the pump body shell 1 are integrally formed. During operation, the multiple reinforcing ribs 5 can significantly improve the structural strength of the pump body shell 1 and enhance its resistance to deformation.

[0017] Furthermore, the inner walls of the pump body housing 1, the inlet pipe 2, and the outlet pipe 3 are all coated with an anti-corrosion coating 13, which is made of epoxy resin. During operation, the epoxy resin material has excellent corrosion resistance and adhesion, effectively isolating the inner walls of the pump body housing 1, the inlet pipe 2, and the outlet pipe 3 from the corrosion of the fluid, thus protecting the pump body housing 1, the inlet pipe 2, and the outlet pipe 3.

[0018] Furthermore, two left and right support legs 4 are fixedly connected to the bottom end of the pump body shell 1. A base 14 is fixedly connected to the bottom end of each support leg 4, and a mounting hole 15 is provided on the upper surface of the base 14. During operation, the presence of the support legs 4 and the base 14 allows the pump body shell 1 to be stably supported on the ground. The mounting hole 15 allows for the addition of screws or rivets to securely install the pump body shell 1 on the ground.

[0019] Furthermore, a second arc-shaped head 9 is provided at one end of the guide protrusion 6 near the impeller 11. The height of the guide protrusion 6 extends linearly from the inlet end to the outlet end of the cross-sectional gradient structure 12, synchronously contracting with the internal cross-sectional gradient structure 12 of the outlet pipe 3. During operation, the presence of the guide protrusion 6 ensures smooth fluid flow along the guiding direction of the guide protrusion 6, and the second arc-shaped head 9 prevents a "stagnant angle" from forming at one end of the guide protrusion 6, thus preventing fluid stagnation.

[0020] Furthermore, the guide vane 7 has a first arc-shaped head 8 at one end near the impeller 11, and the guide vane 7 has a wedge-shaped tip at the other end away from the impeller 11 with rounded edges. The guide vane 7 is located in the middle of the outlet pipe 3 and has a streamlined straight plate structure. The height of the guide vane 7 linearly contracts synchronously with the gradual change structure 12 of the internal cross-section of the outlet pipe 3. During operation, the guide vane 7 and the first arc-shaped head 8 work together to not only guide the main flow direction of the fluid but also avoid impact eddies. The design at the end of the guide vane 7 also prevents wake eddies.

[0021] Furthermore, there are two sets of flow guide protrusions 6 and one set of flow guide blades 7. The two sets of flow guide protrusions 6 are located at the upper and lower ends of one set of flow guide blades 7, respectively. The upper set of flow guide protrusions 6 has three protrusions, and the lower set of flow guide protrusions 6 has two protrusions. The multiple flow guide protrusions 6 are evenly distributed around the inner wall of the liquid outlet pipe 3. There are three flow guide blades 7. The multiple flow guide protrusions 6 and multiple flow guide blades 7 are staggered along the axial direction of the liquid outlet pipe 3. During operation, when the fluid enters the outlet pipe 3 from the pump housing 1, the flow velocity increases sharply and the flow direction becomes dispersed, easily forming a large number of "initial vortices". By setting the guide protrusion 6, its arc-shaped structure can cut the large-scale initial vortices into small-scale vortices. At the same time, through the distribution along the circumference of the flow channel, it buffers the impact of the fluid on the wall, so that the fluid flow state is initially stabilized. After the fluid gradually enters the mainstream section of the cross-section gradient structure 12, the direction is guided by the guide vane 7 to avoid the "direction deviation vortex" generated by the cross-section gradient. Finally, under the action of the guide protrusion 6 at the end of the mainstream section in the cross-section gradient structure 12, the "wake vortex" at the end of the guide vane 7 can be further eliminated. Therefore, the guide vane 7 and the guide protrusion 6 work together to ensure that the fluid is frequently guided and optimized. By further optimizing the flow state of the fluid in the flow channel, the flow resistance is reduced, so that the fluid can be transported more smoothly.

[0022] Working principle: In use, the dual-channel pump body of the overall equipment requires an external power mechanism to control the impeller 11. Under the action of the impeller 11, the fluid enters the pump body shell 1 through the inlet pipe 2, and then is divided into channels by the fluid diverter 10, and discharged from the two outlet pipes 3 along the inner and outer channels respectively. During the discharge process along the outlet pipes 3, the cross-sectional gradient structure 12, through the smooth transition of "large cross-sectional area at the inlet end and small cross-sectional area at the outlet end", makes the fluid accelerate uniformly along the length direction in the channel, reducing vortices and pressure loss caused by velocity difference. At the same time, with the cooperation of the guide protrusion 6 and the guide blade 7, the fluid is frequently guided and optimized. By further optimizing the flow state of the fluid in the channel, the flow resistance is reduced, so that the fluid can be transported more smoothly.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dual-flow-channel pump body, comprising a pump body housing (1) and an impeller (11), characterized in that: The impeller (11) is rotatably connected inside the pump body shell (1). Two outlet pipes (3) and an inlet pipe (2) are fixedly connected to the left and right sides of the circumferential surface of the pump body shell (1), respectively. Both the outlet pipes (3) and the inlet pipes (2) are connected to the pump body shell (1). The interior of both outlet pipes (3) is provided with a cross-sectional gradient structure (12), and the cross-sectional gradient structure (12) and the outlet pipe (3) are an integral structure. The cross-sectional gradient structure (12) has a large inlet cross-sectional area and a small outlet cross-sectional area, and the inlet and outlet ends are smoothly transitioned. The two outlet pipes (3) The inner walls of the pump body (1) are fixedly connected with flow guide protrusions (6). The flow guide protrusions (6) extend along the length of the outlet pipe (3) and the cross-section of the flow guide protrusions (6) is arc-shaped. The inner walls of the two outlet pipes (3) are provided with multiple flow guide blades (7) at intervals along the length direction. The pump body shell (1) is fixedly connected with a fluid distribution channel (10). The fluid distribution channel (10) has a circular arc structure concentric with the inner wall of the pump body shell (1). The fluid distribution channel (10), the inner wall of the pump body shell (1), and the impeller (11) form an outer flow channel and an inner flow channel.

2. The dual-flow-channel pump body according to claim 1, characterized in that: The outer surface of the pump body shell (1) is fixedly connected with multiple reinforcing ribs (5), and the reinforcing ribs (5) and the pump body shell (1) are integrally formed.

3. The dual-flow-channel pump body according to claim 1, characterized in that: The inner walls of the pump body shell (1), the inlet pipe (2) and the outlet pipe (3) are all coated with an anti-corrosion coating (13), and the anti-corrosion coating (13) is made of epoxy resin.

4. A dual-flow-channel pump body according to claim 1, characterized in that: The bottom of the pump body shell (1) is fixedly connected to two left and right distributed support legs (4), and the bottom of each support leg (4) is fixedly connected to a base (14). The upper surface of the base (14) is provided with an installation hole (15).

5. A dual-flow-channel pump body according to claim 1, characterized in that: The guide protrusion (6) is provided with a second arc head (9) at one end near the impeller (11). The height of the guide protrusion (6) extends from the inlet end to the outlet end of the cross-section gradient structure (12), and contracts linearly in sync with the cross-section gradient structure (12) inside the liquid outlet pipe (3).

6. A dual-flow-channel pump body according to claim 5, characterized in that: The guide vane (7) is provided with a first arc-shaped head (8) at one end near the impeller (11). The guide vane (7) is wedge-shaped and tapered at the other end away from the impeller (11), with rounded edges. The guide vane (7) is located in the middle of the outlet pipe (3) and has a streamlined straight plate structure. The height of the guide vane (7) shrinks synchronously and linearly with the gradual change structure (12) of the internal cross section of the outlet pipe (3).

7. A dual-flow-channel pump body according to claim 6, characterized in that: Two sets of flow guide protrusions (6) are provided, and one set of flow guide blades (7) is provided. The two sets of flow guide protrusions (6) are located at the upper and lower ends of one set of flow guide blades (7), respectively. The upper set of flow guide protrusions (6) has three protrusions, and the lower set of flow guide protrusions (6) has two protrusions. The multiple flow guide protrusions (6) are evenly distributed around the inner wall of the liquid outlet pipe (3). The set of flow guide blades (7) has three protrusions, and the multiple flow guide protrusions (6) and multiple flow guide blades (7) are staggered along the axial direction of the liquid outlet pipe (3).

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