Water outlet structure for pump

Abstract

The application relates to a water outlet structure for a pump and belongs to the technical field of water pumps, which comprises an outer cylinder, an inner container, an outlet flow guide and a pump head, the pump head is connected with the outer cylinder, the inner container and the outlet flow guide are arranged in the outer cylinder, the inner container is provided with a flow-through opening, the outlet flow guide comprises a flow guide section and a connecting section which are connected, the connecting section is sleeved outside the flow-through opening, and the flow guide section is in an arc shape. The application has the advantages that liquid can be guided, and vibration and noise during use are reduced.

Description

A pump outlet structure Technical Field

[0001] This application relates to the technical field of water pumps, and in particular to a water outlet structure for a pump. Background Technology

[0002] A multistage pump is a centrifugal pump in which the inlet / outlet and intermediate sections are connected by a tie rod. Vertical multistage pumps include an outlet guide vane. During operation, the liquid flows turbulently after passing through the existing outlet guide vane, easily generating eddies and impacting various components, resulting in high vibration and noise. Summary of the Invention

[0003] To address the shortcomings of existing technologies, one of the objectives of this application is to provide a pump outlet structure that has the advantages of guiding liquid flow and reducing vibration and noise during use.

[0004] The above-mentioned objective of this application is achieved through the following technical solution:

[0005] A pump outlet structure includes an outer cylinder, an inner liner, an outlet guide, and a pump head. The pump head is connected to the outer cylinder. The inner liner and the outlet guide are both disposed inside the outer cylinder. The inner liner has a flow port. The outlet guide includes a guide section and a connecting section connected together. The connecting section is sleeved outside the flow port. The guide section is arc-shaped.

[0006] By adopting the above technical solution, when the liquid moves to the guide section through the flow port during use, the guide section is arc-shaped, thus forming a gradually transitioning water flow cross-section, which controls the flow state and flow direction of the fluid, effectively suppresses adverse states such as fluid impact and eddies, and forms a stable water flow state, effectively controlling the vibration and noise of the pump.

[0007] In a preferred embodiment, this application can be further configured such that, on a vertical plane, the straight line of the connecting segment and the arc of the guide segment are not tangent.

[0008] By adopting the above technical solution, the probability of misalignment of the guide section can be effectively reduced during installation.

[0009] In a preferred embodiment, the present application may be further configured such that the outlet guide includes an outer flow section, the outer flow section being arc-shaped, and the diameter of the circle containing the outer flow section being smaller than the diameter of the circle containing the guide section.

[0010] By adopting the above technical solution, the presence of the outer flow section during use can further enhance the guiding effect on the liquid.

[0011] In a preferred embodiment, the present application may be further configured such that the outlet guide further includes a horizontal section, one end of which is connected to and tangent to the guide section, and the other end of which is connected to and tangent to the outflow section.

[0012] By adopting the above technical solution, the existence of the horizontal section, with one end connected to the guide section and the other end connected to the outflow section, results in a better guiding effect for the liquid.

[0013] In a preferred embodiment, this application may be further configured such that: one end of the outer cylinder extending into the pump head is provided with a guide section, the lower end of the guide section being connected to the outer cylinder, and the upper end being inclined toward the direction close to the axis of the outer cylinder.

[0014] By adopting the above technical solution, the presence of the guide section makes it more convenient to connect the outer cylinder and the pump head.

[0015] In a preferred embodiment, this application may be further configured such that: the pump head is provided with a contact seat, and the outer wall of the outlet guide is in contact with the contact seat.

[0016] By adopting the above technical solution, the presence of the contact seat makes the positioning effect of the multi-outlet guide better.

[0017] In a preferred embodiment, the present application may be further configured such that: the contact seat includes a side seat and a top seat connected to each other, the side seat is in contact with the outer wall of the outlet guide, and the top seat is disposed above the outlet guide.

[0018] By adopting the above technical solution, the presence of the top seat improves the support and fixation effect on the side seats.

[0019] In a preferred embodiment, the application may be further configured such that: the top seat includes a connected straight section and an inclined section, one end of the straight section is connected to the side seat, and the other end is connected to the lower end of the inclined section, and the straight section extends above the guide section.

[0020] By adopting the above technical solution, the presence of the straight section enables the liquid to be restricted, making it easier for the liquid to flow in other directions.

[0021] In a preferred embodiment, this application may be further configured such that the sloped section extends above the flow port.

[0022] By adopting the above technical solution, the existence of the inclined section can limit and guide the flow of liquid. Attached Figure Description

[0023] Figure 1 is a schematic diagram of the structure of this application.

[0024] Figure 2 is a cross-sectional view of the present application.

[0025] Figure 3 is a schematic diagram of the pump head structure of this application.

[0026] Reference numerals: 1. Outer cylinder; 11. Guide section; 2. Pump head; 21. Buffer surface; 3. Inner liner; 31. Flow port; 4. Outlet guide; 41. Connecting section; 42. Guide section; 43. Horizontal section; 44. Outer flow section; 5. Contact seat; 51. Side seat; 52. Top seat; 521. Straight section; 522. Inclined section. Detailed Implementation

[0027] The present application will be further described in detail below with reference to Figures 1-3.

[0028] This application discloses a pump outlet structure, including a pump head 2, an outer cylinder 1, an outlet guide 4, and an inner liner 3. One end of the outer cylinder 1 is provided with a guide section 11, the lower end of which is connected to the outer cylinder 1, and the upper end is inclined in a direction close to the axis of the outer cylinder 1. The guide section 11 extends into the pump head 2 and the outer cylinder 1 is connected to the pump head 2.

[0029] The pump head 2 is also equipped with a contact seat 5, which includes a side seat 51 and a top seat 52 connected to each other. The inner liner 3 is set inside the outer cylinder 1, and the inner liner 3 is provided with a flow port 31. The outlet guide 4 includes a connecting section 41 and a guide section 42 connected to each other, and the connecting section 41 is sleeved on the outer wall of the flow port 31. The side seat 51 is located on one side of the outlet guide 4, and the outer wall of the outlet guide 4 is in contact with the side seat 51.

[0030] The outlet guide vane 4 also includes an outer flow section 44 and a horizontal section 43, wherein both the outer flow section 44 and the guide section 42 are arc-shaped in vertical cross-section. The diameter of the circle containing the outer flow section 44 is smaller than the diameter of the circle containing the guide section 42. One end of the horizontal section 43 is tangent to the outer flow section 44, and the other end is tangent to the guide section 42. In vertical cross-section, the straight line of the connecting section 41 and the cross-section of the guide section 42 are not tangent to each other.

[0031] The top seat 52 is positioned above the outlet guide 4. The top seat 52 includes a straight section 521 and an inclined section 522 connected to each other. One end of the straight section 521 is connected to the side seat 51, and the other end is connected to the lower end of the inclined section 522. The straight section 521 extends above the guide section 42, and the inclined section 522 extends above the flow port 31. The pump head 2 also has a buffer surface 21, which is arc-shaped and connected to the highest end of the inclined section 522.

[0032] The implementation principle of this embodiment is as follows: through the integrated design of the outlet guide 4, pump head 2 and outer cylinder, the flow channel is designed as a gradually transitioning water flow section that conforms to the fluid motion law, which controls the fluid flow state and flow direction, effectively suppresses adverse states such as fluid impact and eddies, and significantly improves the efficiency of the water pump. Moreover, the stable water flow state effectively controls the vibration and noise of the pump.

[0033] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pump outlet structure, characterized in that: The device includes an outer cylinder (1), an inner liner (3), an outlet guide (4), and a pump head (2). The pump head (2) is connected to the outer cylinder (1). The inner liner (3) and the outlet guide (4) are both located inside the outer cylinder (1). The inner liner (3) has a flow port (31). The outlet guide (4) includes a guide section (42) and a connecting section (41) connected to each other. The connecting section (41) is fitted outside the flow port (31). The guide section (42) is arc-shaped. On the vertical plane, the straight line of the cross section of the connecting section (41) and the arc of the cross section of the guide section (42) are not tangent. The outlet guide (4) also includes an outer flow section (44). The segment (44) is arc-shaped, and the diameter of the circle containing the outflow segment (44) is smaller than the diameter of the circle containing the guide segment (42); the outlet guide (4) also includes a horizontal segment (43), one end of which is connected to and tangent to the guide segment (42), and the other end of which is connected to and tangent to the outflow segment (44); the pump head (2) is provided with a contact seat (5), and the outer wall of the outlet guide (4) is in contact with the contact seat (5); the contact seat (5) includes a side seat (51) and a top seat (52) connected to each other, the side seat (51) is in contact with the outer wall of the outlet guide (4), and the top seat (52) is located above the outlet guide (4).

2. The pump outlet structure according to claim 1, characterized in that: The outer cylinder (1) is provided with a guide section (11) at one end that extends into the pump head (2). The lower end of the guide section (11) is connected to the outer cylinder (1), and the upper end is inclined toward the direction close to the axis of the outer cylinder (1).

3. The pump outlet structure according to claim 1, characterized in that: The top seat (52) includes a straight section (521) and an inclined section (522) connected to each other. One end of the straight section (521) is connected to the side seat (51), and the other end is connected to the lower end of the inclined section (522). The straight section (521) extends above the guide section (42).

4. The pump outlet structure according to claim 3, characterized in that: The inclined section (522) extends above the flow port (31).

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