Pump impeller structure of high-speed water pump

Abstract

The utility model relates to the technical field of high-speed water pumps, and discloses a pump impeller structure of a high-speed water pump, which comprises a first shell, a second shell, a shaft sleeve and blades, the shaft sleeve penetrates through the first shell and the second shell; the blades spirally surround the shaft sleeve in an array manner and are fixed between the first shell and the second shell; any point of the blade is located between the first shell and the end, close to the second shell and away from the first shell, of the shaft sleeve. The blades are limited between the first shell and the end, close to the second shell and far away from the first shell, of the shaft sleeve, so that the part, close to the shaft sleeve, of each blade is not higher than the shaft sleeve, the flow of liquid capable of being centrifuged by each blade is limited, the cavitation phenomenon is effectively avoided when the flow of the high-speed water pump is small, and the service life of the high-speed water pump is prolonged. And the device is suitable for small-flow high-speed water pumps.

Description

Technical Field

[0001] The present disclosure relates to the technical field of high-speed water pumps, and in particular to a pump impeller structure of a high-speed water pump. Background Art

[0002] CN220815874U discloses a water pump turbine runner with a bionic blade inlet edge type. Since the part of each blade close to the sleeve is higher than the sleeve, the liquid flow rate that can be centrifuged by each blade (that is, the blade transports water to the volute through centrifugal force) is large. Therefore, when the flow rate of the high-speed water pump is small, cavitation is easily caused, and thus it is not suitable for high-speed water pumps with small flow rates.

[0003] Therefore, the existing technology needs to be improved.

[0004] Public content

[0005] In response to the defects of the existing technology, the present disclosure provides an impeller structure of a high-speed water pump, which aims to solve the technical problem in the related technology that the impeller is not suitable for high-speed water pumps with smaller flow rates because the part of each blade close to the shaft sleeve is higher than the shaft sleeve, resulting in a large liquid flow rate that can be centrifuged by each blade, which is easy to cause cavitation when the flow rate of the high-speed water pump is small.

[0006] The technical solutions adopted by the present disclosure to solve the above technical problems are as follows:

[0007] The present disclosure provides a pump impeller structure of a high-speed water pump, comprising:

[0008] A first shell and a second shell arranged opposite to each other;

[0009] a shaft sleeve, passing through the first shell and the second shell;

[0010] The blades are spirally arrayed around the sleeve and fixed between the first shell and the second shell; any point of the blades is located between the first shell and an end of the sleeve close to the second shell and away from the first shell.

[0011] In some embodiments, any two adjacent blades, the outer surface of the first shell, and the outer surface of the second shell form a water outlet, and the water outlet is connected to the volute.

[0012] In some embodiments, the blade, the first shell, and the second shell are integrally formed.

[0013] In some embodiments, the sleeve, the blades, the first shell, and the second shell are integrally formed.

[0014] Beneficial Effects: The present invention restricts the blades between the first housing and the end of the sleeve that is close to the second housing and away from the first housing, so that the portion of each blade close to the sleeve is not higher than the sleeve, thereby limiting the liquid flow rate that can be centrifuged by each blade, thereby effectively avoiding the occurrence of cavitation when the flow rate of the high-speed water pump is small, and is suitable for high-speed water pumps with small flow rates. Therefore, the present invention solves the technical problem in the related art that the impeller of each blade has a portion close to the sleeve higher than the sleeve, resulting in a large liquid flow rate that can be centrifuged by each blade, which easily causes cavitation when the flow rate of the high-speed water pump is small, and is therefore not suitable for high-speed water pumps with small flow rates. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without any creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a pump impeller structure of a high-speed water pump provided in some embodiments of the present disclosure.

[0017] Figure 2 This is another three-dimensional structural schematic diagram of the impeller structure of a high-speed water pump provided in some embodiments of the present disclosure.

[0018] Description of reference numerals:

[0019] 11. First shell; 12. Second shell; 20. Bushing; 21. First end; 22. Second end; 30. Blade; 40. Water outlet. DETAILED DESCRIPTION

[0020] Those skilled in the art will appreciate that, unless expressly stated otherwise, the singular forms "a", "above", "aforesaid", "said", and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present disclosure refers to the presence of the features, integers, steps, operations, elements, and / or modules, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, modules, and / or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it may be directly connected or coupled to the other element, or there may be intermediate elements. In addition, "connected" or "coupled" as used herein may include wireless connections or wireless couplings. The term "and / or" used herein includes all or any one of the units and all combinations of one or more associated listed items.

[0021] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art in the art to which this disclosure belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and, unless specifically defined as herein, will not be interpreted in an idealized or overly formal sense.

[0022] See also Figure 1 and Figure 2 The present disclosure provides a high-speed water pump impeller structure, comprising: a first shell 11 and a second shell 12 arranged opposite to each other (the first shell and the second shell can be set as but not limited to the following Figure 1 The main body is a substantially disc-shaped structure shown in FIG. 1 ), a sleeve 20 , and blades 30 .

[0023] The shaft sleeve 20 passes through the first shell 11 and the second shell 12. In some embodiments, the first shell is provided with a first through hole (not shown in the figure), and the second shell is provided with a second through hole (not shown in the figure). The shaft sleeve 20 includes a first end 21 located in the first through hole and a second end 22 located in the second through hole. The first end and the inner surface of the first through hole are integrally formed without a gap to fix the shaft sleeve and the first shell, and the second end and the inner surface of the second through hole do not contact each other (that is, there is a gap between the second end of the shaft sleeve and the second through hole, and the liquid enters between the first shell and the second shell through the gap). The first end and the second end of the shaft sleeve are both used to connect with the rotating shaft of the high-speed water pump (not shown in the figure, please refer to the prior art, which is not described here).

[0024] The blades 30 are arranged in a spiral array around the sleeve 20; that is, the number of blades can be more than one, and the more than one blades are arranged in a spiral array around the sleeve. The blades 30 are fixed between the first shell 11 and the second shell 12; in some embodiments, the first shell and the second shell do not contact each other so that there is a gap between the side surface of the first shell and the side surface of the second shell. One end of each blade is located in the gap and is integrally formed with the first shell and the second shell on both sides, thereby fixing the first shell, the second shell, and each blade. Any point of the blade 30 is located between the first shell 11 and the end of the sleeve 20 close to the second shell 12 and away from the first shell 11 (that is, the second end 22 of the sleeve 20), so that the part of each blade close to the sleeve is not higher than the sleeve.

[0025] In some embodiments, see Figure 1 and Figure 2Any two adjacent blades, the outer surface of the first shell, and the outer surface of the second shell form a water outlet 40, which is connected to an additional volute (not shown in the figure, please refer to the existing technology and will not be described here). When the high-speed water pump is operating, liquid enters between the second shell and the first shell through the second through hole, is centrifuged by the blades, and then enters the volute through the water outlet. During this process, because the portion of each blade close to the sleeve is not higher than the sleeve, the liquid flow rate that can be centrifuged by each blade is relatively small. This effectively prevents the occurrence of cavitation when the high-speed water pump has a low flow rate, making it suitable for high-speed water pumps with relatively small flow rates.

[0026] The impeller structure of the high-speed water pump provided by the present disclosure restricts the blades between the first housing and the end of the sleeve that is close to the second housing and away from the first housing, so that the portion of each blade close to the sleeve is not higher than the sleeve, thereby limiting the liquid flow rate that can be centrifuged by each blade, thereby effectively avoiding the occurrence of cavitation when the flow rate of the high-speed water pump is small, and is suitable for high-speed water pumps with small flow rates. Therefore, the present disclosure solves the technical problem of the impeller in the related art that, because the portion of each blade close to the sleeve is higher than the sleeve, the liquid flow rate that can be centrifuged by each blade is large, which easily causes cavitation when the flow rate of the high-speed water pump is small, and is therefore not suitable for high-speed water pumps with small flow rates.

[0027] It will be understood that the terms "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "side", "bottom", "inside", and "outside" in the present disclosure indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present disclosure.

[0028] It is understood that the terms "first" and "second" in this disclosure are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present disclosure, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] It is understood that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," "connected," and "fixed" in this disclosure should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and may refer to internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in the embodiments of this disclosure based on specific circumstances.

[0030] The above embodiments are only used to illustrate the present disclosure and are not used to limit the scope of the present disclosure. Any modifications or changes that do not violate the spirit of the present disclosure are within the scope of protection of the present disclosure.

Claims

1. A high-speed water pump impeller structure, characterized in that: include: A first shell and a second shell arranged opposite to each other; a shaft sleeve, passing through the first shell and the second shell; The blades are spirally arrayed around the sleeve and fixed between the first shell and the second shell; any point of the blades is located between the first shell and an end of the sleeve close to the second shell and away from the first shell.

2. The impeller structure of the high-speed water pump according to claim 1, characterized in that: Any two adjacent blades, the outer surface of the first shell, and the outer surface of the second shell form a water outlet, and the water outlet is communicated with the volute.

3. The impeller structure of the high-speed water pump according to claim 2, characterized in that: The blade, the first shell, and the second shell are integrally formed.

4. The impeller structure of the high-speed water pump according to claim 3, characterized in that: The shaft sleeve, the blades, the first shell, and the second shell are integrally formed.

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