A water pump suitable for high temperature liquids

Abstract

The utility model is specifically related to a water pump suitable for high-temperature liquid, which comprises a pump shell with a pump cavity, wherein an inlet pipe and an outlet pipe are arranged on the pump shell and are communicated with the pump cavity, the pump cavity and the inlet pipe form an inlet flow channel, a boiling-stop structure is arranged on the inlet flow channel, and the boiling-stop structure comprises a plurality of convex ribs which are distributed around the center of the inlet flow channel and extend along the axial direction of the inlet flow channel. The convex ribs in the inlet flow channel generate disturbance to the high-temperature liquid when the water pump is working, effectively break the bubbles of the boiling liquid, promote the breaking and discharge of the bubbles, thereby effectively inhibit the reboiling phenomenon, and improve the operation efficiency and stability of the water pump.

Description

Technical Field

[0001] This utility model relates to the field of water pump technology, specifically to a water pump suitable for high-temperature liquids. Background Technology

[0002] Water pumps, which drive an impeller to pressurize or transport liquids, are widely used in various equipment, playing a crucial role, especially in home appliances. However, existing water pumps present a significant technical problem when handling near-boiling water. When hot water enters the pump chamber directly from the inlet pipe, it is prone to reboiling due to its near-boiling point, generating numerous bubbles. This disrupts the continuous flow of the liquid, reduces pumping efficiency, and may cause cavitation, corroding and damaging the pump's internal structure. Furthermore, the presence of bubbles leads to unstable pump operation, noise, and vibration, further impacting user experience and equipment lifespan. Therefore, existing technologies urgently need improvement to address these issues. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide a water pump suitable for high-temperature liquids.

[0004] The technical solution adopted by this utility model is as follows: A water pump suitable for high-temperature liquids includes a pump casing with a pump chamber, wherein an inlet pipe and an outlet pipe communicating with the pump chamber are respectively provided on the pump casing. The pump chamber and the inner cavity of the inlet pipe form an inlet channel. The inlet channel is provided with an anti-boiling structure, which includes several ribs distributed around the center of the inlet channel and extending along the axial direction of the inlet channel.

[0005] Preferably, the rib is connected to the inner wall of the water inlet pipe.

[0006] Preferably, the end face of the rib corresponding to the center of the water inlet channel includes a third inclined surface facing the water inlet pipe inlet.

[0007] Preferably, the inner circumferential surface of the rib includes a first inclined surface, a second straight surface, a third inclined surface, a fourth straight surface, and a fifth inclined surface connected in sequence along the water flow direction. The first inclined surface and the third inclined surface face the same direction, and the fifth inclined surface faces the opposite direction to the third inclined surface.

[0008] Preferably, the inner wall of the water inlet pipe includes a first cylindrical surface, a second conical surface, and a third cylindrical surface connected in sequence along the water flow direction, wherein the diameter of the second conical surface decreases along the water flow direction.

[0009] Preferably, the anti-boiling structure further includes several vertical grooves distributed around the center of the water inlet channel and extending along the axial direction of the water inlet channel.

[0010] Preferably, the vertical groove is located on the wall of the pump cavity.

[0011] Preferably, the cross-section of the vertical groove is semi-circular.

[0012] The beneficial effects of this utility model are as follows: the ribs located in the water inlet channel disturb the high-temperature liquid when the water pump is working, effectively breaking up the bubbles in the boiling liquid, promoting the breaking and discharge of bubbles, thereby effectively suppressing the reboiling phenomenon and improving the operating efficiency and stability of the water pump. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0014] Figure 1 This is a schematic diagram of the overall structure of the water pump in this embodiment of the utility model; Figure 2 This is a top view of the water pump in an embodiment of the present invention; Figure 3 This is a front view of the water pump in an embodiment of the present invention; Figure 4 for Figure 2 Cross-sectional view at point AA; Figure 5 for Figure 3 Cross-sectional view at point BB; Figure 6 for Figure 4 Enlarged view of the structure at point C; Figure 7 for Figure 5 Enlarged view of the structure at point D; In the diagram, 1 is the pump casing; 11 is the inlet pipe; 12 is the outlet pipe; 13 is the pump chamber; 2 is the rib; 21 is the first inclined surface; 22 is the second straight surface; 23 is the third inclined surface; 24 is the fourth straight surface; 25 is the fifth inclined surface; 111 is the first cylindrical surface; 112 is the second conical surface; 113 is the third cylindrical surface; and 131 is the vertical groove. Detailed Implementation

[0015] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0016] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0017] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0018] like Figures 1 to 7 As shown in the figure, a water pump suitable for high-temperature liquids is provided in an embodiment of the present invention, including a pump casing 1 with a pump chamber 13, wherein an inlet pipe 11 and an outlet pipe 12 communicating with the pump chamber 13 are respectively provided on the pump casing 1. The pump chamber 13 and the inner cavity of the water inlet pipe 11 form a water inlet channel. The water inlet channel is provided with an anti-boiling structure, which includes several ribs 2 distributed around the center of the water inlet channel and extending along the axial direction of the water inlet channel.

[0019] With this design, the ribs located in the water inlet channel disturb the high-temperature liquid when the water pump is working, effectively breaking up the bubbles in the boiling liquid, promoting the breaking and discharge of bubbles, thereby effectively suppressing reboiling and improving the operating efficiency and stability of the water pump.

[0020] The rib 2 is connected to the inner wall of the water inlet pipe 11.

[0021] This setting helps to effectively suppress reboiling before the high-temperature liquid enters the pump chamber, reducing the impact of the high-temperature liquid on the pump body.

[0022] The end face of the rib 2 corresponding to the center of the water inlet channel includes a third inclined surface 23 facing the inlet of the water inlet pipe 11.

[0023] This design effectively increases the contact area between the rib and the high-temperature liquid, thereby improving the breaking and discharge of bubbles.

[0024] The inner circumferential surface of the rib 2 includes a first inclined surface 21, a second straight surface 22, a third inclined surface 23, a fourth straight surface 24 and a fifth inclined surface 25 connected in sequence along the water flow direction. The first inclined surface 21 and the third inclined surface 23 face the same direction, and the fifth inclined surface 25 faces the opposite direction to the third inclined surface 23.

[0025] This setup guides the high-temperature liquid through the first and fifth inclined planes, optimizing the flow rate and pressure distribution of the liquid.

[0026] The inner wall of the water inlet pipe 11 includes a first cylindrical surface 111, a second conical surface 112 and a third cylindrical surface 113 connected in sequence along the water flow direction, and the diameter of the second conical surface 112 decreases along the water flow direction.

[0027] This design further optimizes the flow rate and pressure distribution of the liquid, creating favorable conditions for bubble breakage and discharge, and further improving the operational stability of the water pump. At the same time, the second conical surface also helps to enhance the shearing effect on the bubbles, promoting bubble breakage.

[0028] The anti-boiling structure also includes several vertical grooves 131 that are distributed around the center of the water inlet channel and extend along the axial direction of the water inlet channel.

[0029] The vertical groove 131 is located on the wall of the pump chamber 13.

[0030] The cross-section of the vertical groove 131 is semi-circular.

[0031] With this design, the vertical groove and the raised rib work together, with the vertical groove further agitating the high-temperature liquid and suppressing the reboiling phenomenon; at the same time, it provides space to promote the breaking and discharge of bubbles.

[0032] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A water pump suitable for high-temperature liquids, comprising a pump casing (1) having a pump chamber (13), wherein the pump casing (1) is respectively provided with an inlet pipe (11) and an outlet pipe (12) communicating with the pump chamber (13), characterized in that: The pump chamber (13) and the inner cavity of the water inlet pipe (11) form a water inlet channel. The water inlet channel is provided with an anti-boiling structure, which includes several ribs (2) distributed around the center of the water inlet channel and extending along the axial direction of the water inlet channel.

2. A water pump suitable for high-temperature liquids according to claim 1, characterized in that: The rib (2) is connected to the inner wall of the water inlet pipe (11).

3. A water pump suitable for high-temperature liquids according to claim 1, characterized in that: The rib (2) has a third inclined surface (23) facing the inlet of the water inlet pipe (11) on the end face corresponding to the center of the water inlet channel.

4. A water pump suitable for high-temperature liquids according to claim 3, characterized in that: The inner circumferential surface of the rib (2) includes a first inclined surface (21), a second straight surface (22), a third inclined surface (23), a fourth straight surface (24), and a fifth inclined surface (25) connected in sequence along the water flow direction. The first inclined surface (21) and the third inclined surface (23) face the same direction, and the fifth inclined surface (25) faces the opposite direction to the third inclined surface (23).

5. A water pump suitable for high-temperature liquids according to claim 1, characterized in that: The inner wall of the water inlet pipe (11) includes a first cylindrical surface (111), a second conical surface (112) and a third cylindrical surface (113) connected in sequence along the water flow direction. The diameter of the second conical surface (112) decreases along the water flow direction.

6. A water pump suitable for high-temperature liquids according to any one of claims 1-5, characterized in that: The anti-boiling structure also includes several vertical grooves (131) that are distributed around the center of the water inlet channel and extend along the axial direction of the water inlet channel.

7. A water pump suitable for high-temperature liquids according to claim 6, characterized in that: The vertical groove (131) is located on the wall of the pump chamber (13).

8. A water pump suitable for high-temperature liquids according to claim 6, characterized in that: The cross-section of the vertical groove (131) is semi-circular.

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