Pump body noise reduction structure
By setting a buffer chamber and buffer member in the pump body outflow channel, the arc-shaped buffer surface and the tapered connecting surface are used to guide the water flow, which solves the hydraulic noise problem of the pump body and achieves the stable flow and noise reduction effect of the fluid.
Patent Information
- Application Number
- CN202422985786.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-12-04
AI Technical Summary
In the prior art, the hydraulic noise treatment technology of the pump body is relatively scarce, resulting in the chaotic flow of fluid to the impact pipe wall when it flows through the components and has not been effectively solved.
A buffer cavity and a buffer member are arranged in the outflow channel of the pump body. The buffer member has a soft buffer surface. It is limited in the buffer chamber through a fixed cage. The buffer is arranged in the direction of fluid flow, and the water flows to the converge on both sides through the arc-shaped buffer surface, and the fluid direction is guided to be adjusted in conjunction with the conical connecting surface.
It effectively reduces the impact of water flow on the pipe wall, reduces the noise of the pump body, and ensures the stable flow of the fluid and noise reduction effect.
Smart Images
Figure CN223062756U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a noise reduction structure of a pump body. Background Art
[0002] The noise of the pump body mainly comes from mechanical noise and hydraulic noise. The mechanical noise mainly comes from the vibration of the shaft, and the mechanical noise in the prior art is relatively low and can be solved by adjusting the precision. The hydraulic noise comes from the saturated vapor pressure of the fluid and the chaotic flow direction impact when the fluid flows through the components, which causes noise when it impacts the pipe wall. Especially in the existing field, the treatment technology for the above-mentioned hydraulic noise is relatively scarce. Summary of the Utility Model
[0003] In order to solve the problem of the hydraulic noise of the pump body, the utility model provides a noise reduction structure of a pump body, which adopts a buffer structure and a drainage structure to reduce the hydraulic noise.
[0004] The technical solution adopted by the utility model is: a noise reduction structure of a pump body, including a pump body, the pump body includes an inflow channel and an outflow channel, and a noise reduction member is arranged in the outflow channel. The noise reduction member is characterized in that: the noise reduction member includes a buffer cavity arranged at the outflow channel, the cross-sectional diameter of the buffer cavity is larger than that of the outflow channel, a buffer member is arranged in the buffer cavity, the buffer member includes a soft buffer surface, and the buffer surface is arranged facing the fluid inflow direction of the outflow channel; it also includes a fixing cage, the buffer surface is limited in the buffer cavity through the fixing cage, and there is a gap between the fixing cage and the side wall of the buffer cavity.
[0005] As one of the preferred solutions of a noise reduction structure of a pump body: the buffer cavity is fixed with an upper cover, and the fixing cage extends downward from the lower end surface of the upper cover.
[0006] As one of the preferred solutions of a noise reduction structure of a pump body: both sides of the buffer surface of the buffer member extend backward and are connected to form a conical cross-section. The fixing cage has the same shape as the buffer member and the internal space is larger than that of the buffer member, and the buffer member can move slightly in the fixing cage.
[0007] As one of the preferred solutions of a noise reduction structure of a pump body: the fixing cage is provided with flow holes. The opening direction of the flow holes is the water flow direction.
[0008] As one of the preferred solutions of a noise reduction structure of a pump body: the lower end edge of the fixing cage is provided with an annular fixing ring, and the fixing ring contacts the bottom of the buffer cavity.
[0009] The beneficial effect of the utility model is that: during the process of the pump body pumping fluid, the water flow speed in the outflow channel is the fastest, the impact is the greatest, and the flow direction is chaotic. The arc-shaped buffer surface buffers the water flow and guides it to both sides for confluence, reducing the impact of the water flow on the pipe wall and thus reducing the noise. The fixing cage is used to prevent the buffer surface from moving wantonly in the buffer cavity, ensuring the buffer confluence effect; the rear-end conical connection surface guides and rectifies the water flow, ensuring the rectification of the fluid flow direction flowing out of the buffer cavity. Description of the Drawings
[0010] Figure 1 This is a perspective view of the present utility model.
[0011] Figure 2 This is a cross-sectional view of the noise reduction structure of the present utility model.
[0012] Figure 3 This is a schematic diagram of the second embodiment of the noise reduction structure of the present utility model.
[0013] Figure 4 This is a perspective view of the second embodiment of the noise reduction structure of the present utility model.
[0014] Wherein: 1, pump body; 2, inlet flow channel; 3, outlet flow channel; 4, buffer cavity; 6, buffer surface; 7, fixing cage; 8, upper cover; 9, conical cross-section; 10, annular fixing ring. Detailed Description of the Embodiments
[0015] To make the objectives, technical solutions, and advantages of the present application more clear, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
[0016] Embodiment 1: As shown in Figure 1 and Figure 2 : A noise reduction structure for a pump body 1 includes a pump body 1. The pump body 1 includes an inlet flow channel 2 and an outlet flow channel 3. A noise reduction member is provided in the outlet flow channel 3. The noise reduction member includes a buffer cavity 4 provided at the outlet flow channel 3. The cross-sectional diameter of the buffer cavity 4 is larger than that of the outlet flow channel 3. A buffer member is provided in the buffer cavity 4. The buffer member includes a soft buffer surface 6. The buffer surface 6 is arranged facing the fluid inflow direction of the outlet flow channel 3; it further includes a fixing cage 7. The buffer surface 6 is limited in the buffer cavity 4 through the fixing cage 7. There is a gap between the fixing cage 7 and the side wall of the buffer cavity 4. An overflow hole 5 is provided on the fixing cage. The opening direction of the overflow hole 5 is the water flow direction.
[0017] In this embodiment, an upper cover 8 is fixed to the buffer cavity 4, and the fixing cage 7 extends downward from the lower end surface of the upper cover 8.
[0018] Embodiment 2: This embodiment is a further improvement based on Embodiment 1. The two sides of the buffer surface 6 of the buffer member extend backward and are connected to form a conical cross-section 9. The fixing cage 7 has the same shape as the buffer member and a larger internal space than the buffer member. The buffer member can move slightly within the fixing cage 7.
[0019] In this embodiment, an annular fixing ring 10 is provided at the lower end edge of the fixing cage 7, and the fixing ring contacts the bottom of the buffer cavity 4.
[0020] In the above embodiments, all technical features are described. It should be understood that any third party may cancel some technical features in order to avoid infringement. Among them, the structures listed in this embodiment can be cancelled according to the actual situation. Therefore, not all of the listed technical features are essential technical features. The protection scope of the present utility model shall be subject to the claims. Other embodiments of the present utility model can be adjusted according to actual needs, which will not be elaborated herein and does not mean giving up similar solutions.
Claims
1. A noise reduction structure for a pump body, comprising a pump body (1), the pump body (1) including an inlet flow channel (2) and an outlet flow channel (3), and a noise reduction member is provided in the outlet flow channel (3), characterized in that: The noise reduction member includes a buffer cavity (4) provided at the outflow channel (3). The cross-sectional diameter of the buffer cavity (4) is larger than that of the outflow channel (3). A buffer member is provided in the buffer cavity (4). The buffer member includes a soft arc-shaped buffer surface (6), and the buffer surface (6) is arranged facing the fluid inflow direction of the outflow channel (3). It further includes a fixing cage (7). The buffer surface (6) is limited in the buffer cavity (4) through the fixing cage (7), and there is a gap between the fixing cage (7) and the side wall of the buffer cavity (4).
2. The pump body noise reduction structure according to claim 1, wherein: An upper cover (8) is fixed to the buffer cavity (4), and the fixing cage (7) extends downward from the lower end surface of the upper cover (8).
3. The pump body noise reduction structure according to claim 2, characterized in that: Both sides of the buffer surface (6) of the buffer member extend backward and are connected to form a conical cross-section (9). The fixing cage (7) has the same shape as the buffer member and a larger internal space than the buffer member, and the buffer member can move slightly within the fixing cage (7).
4. The pump body noise reduction structure according to claim 1, characterized in that: The fixing cage (7) is provided with a flow-through hole (5), and the opening direction of the flow-through hole (5) is the water flow direction.
5. The pump body noise reduction structure according to claim 4, characterized in that: A ring-shaped fixing ring (10) is provided at the lower end edge of the fixing cage (7), and the fixing ring contacts the bottom of the buffer cavity (4).