Impeller structure capable of improving pump performance and reducing loss

Abstract

The utility model relates to the technical field of impellers, in particular to an impeller structure capable of improving pump performance and reducing loss, the flow characteristic of fluid on blades is changed through continuous wave-shaped grooves in the blades, the conversion efficiency of kinetic energy is improved, the continuous wave-shaped grooves can guide the fluid to an optimal flow path, flow separation and vortex generation are reduced, and the service life of the impeller structure is prolonged. The noise vibration of the water pump can be reduced, and the practicability of the device is improved; comprising a lower cover, blades, an upper cover and continuous wave-shaped grooves, the blades are arranged on the lower cover, the continuous wave-shaped grooves are formed in the side faces of the blades, and the upper cover is connected with the lower cover in a matched mode.

Description

Technical Field

[0001] The utility model relates to the technical field of impellers, in particular to an impeller structure that improves the performance of a pump and reduces losses. Background Art

[0002] With the increasing requirements for energy conservation and environmental protection, pumps, as key power sources, must also meet the standards of high efficiency and low energy consumption. A water pump is a machine that transports liquids or increases the pressure of liquids. It transmits the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid. It is mainly used to transport liquids including water, oil, acid and alkali solutions, emulsions, suspension liquids, and liquid metals, etc.

[0003] In the prior art, the Chinese utility model patent with the application number CN201620299902.4 relates to a water pump impeller, including a positioning pin, a bolt, a drive shaft, a belt pulley, etc., which can ensure that the cooling water entering from the water inlet port can flow out from the water outlet port to the maximum extent, greatly improving the volumetric efficiency of the water pump.

[0004] When the above device is working, the effective fluid of the impeller receives energy from the rotation of the impeller, but it is not completely output, and it is not completely converted into effective work. During the flow of the pump from the inlet to the outlet, there are hydraulic friction losses and local hydraulic losses caused by impact, separation, and change of the velocity direction, thereby reducing the efficiency. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides an impeller structure that improves the performance of a pump and reduces losses. By changing the flow characteristics of the fluid on the blade through continuous waveform grooves on the blade, the conversion efficiency of kinetic energy is improved. The continuous waveform grooves can guide the fluid to the optimal flow path, reduce the generation of separation and eddy currents, and thereby reduce the noise and vibration of the water pump, improving the practicality of the device.

[0006] An impeller structure of the utility model that improves the performance of a pump and reduces losses; includes a lower cover, blades, an upper cover, and continuous waveform grooves. Multiple groups of blades are arranged on the lower cover, and continuous waveform grooves are arranged on the side surfaces of the blades. The upper cover is cooperatively connected with the lower cover; by changing the flow characteristics of the fluid on the blade through the continuous waveform grooves on the blade, the conversion efficiency of kinetic energy is improved. The continuous waveform grooves can guide the fluid to the optimal flow path, reduce the generation of separation and eddy currents, and thereby reduce the noise and vibration of the water pump, improving the practicality of the device.

[0007] Preferably, it further includes that the continuous waveform grooves are arranged on the pressure surface of the blade; by arranging the continuous waveform grooves on one side of the blade, the processing difficulty and cost are reduced. The arrangement of the continuous waveform grooves on the non-pressure surface of the blade has little impact on the overall efficiency. Therefore, it is only necessary to arrange the continuous waveform grooves on the pressure surface of the blade, improving the practicality and economy of the device.

[0008] Preferably, it further includes that the machining length of the continuous waveform groove is two-thirds of the blade length; when the impeller is operating, the liquid passes through the flow channels between the blades. Due to the rotation of the lower cover and the blades, the liquid presses against the pressed surface of the blade. Affected by the centrifugal force, the greater the distance of the liquid from the central region of the lower cover, the greater the pressure on the side surface of the blade. Therefore, the function of setting the continuous waveform groove on the part of the blade close to the central region of the lower cover is relatively small. Moreover, the spacing between multiple groups of blades in the part close to the central region of the lower cover is small, and the machining difficulty is high. By controlling the machining area length of the continuous waveform groove, the production cost is reduced, and the practicability of the device is improved.

[0009] Preferably, it further includes that the lower cover and the upper cover body are processed by injection molding technology and are connected by welding; the structures of the lower cover and the upper cover are simple. The process of separate injection molding and then welding can reduce the production cost. At the same time, it is convenient to machine the continuous waveform groove on the pressed surface of the blade, improving the practicability of the device.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows: By changing the flow characteristics of the fluid on the blade through the continuous waveform groove on the blade, the conversion efficiency of kinetic energy is improved. The continuous waveform groove can guide the fluid to the optimal flow path, reducing the generation of flow separation and eddy current. And this can reduce the noise and vibration of the water pump, improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 is the first axonometric structural schematic diagram of the present utility model;

[0012] Figure 2 is the first sectional structural schematic diagram of the present utility model;

[0013] Figure 3 is the second sectional structural schematic diagram of the present utility model;

[0014] Figure 4 is the second axonometric structural schematic diagram of the present utility model;

[0015] Figure 5 is the front view structural schematic diagram of the present utility model;

[0016] Reference numerals in the drawings: 1, lower cover; 2, blade; 3, upper cover; 4, continuous waveform groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.

[0018] Embodiment

[0019] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 shown, multiple groups of blades 2 are arranged on the lower cover 1, continuous waveform grooves 4 are arranged on the side surface of the blades 2, and the upper cover 3 is connected with the lower cover 1 in a matching manner;

[0020] First, turn on the water pump to drive the lower cover 1 to rotate. The rotating blades 2 pump out the liquid. During the process of following the rotation of the blades 2, the liquid is pressed against the side surface of the blades 2, and the continuous waveform grooves 4 are used to increase the kinetic energy conversion efficiency of the device;

[0021] It includes a lower cover 1, blades 2, an upper cover 3 and continuous waveform grooves 4. Multiple groups of blades 2 are arranged on the lower cover 1, continuous waveform grooves 4 are arranged on the side surface of the blades 2, and the upper cover 3 is connected with the lower cover 1 in a matching manner;

[0022] It also includes that the continuous waveform grooves 4 are arranged on the pressed surface of the blades 2;

[0023] It also includes that the processing length of the continuous waveform grooves 4 is two-thirds of the length of the blades 2;

[0024] It also includes that the main bodies of the lower cover 1 and the upper cover 3 are processed by an injection molding process and are connected by welding;

[0025] By changing the flow characteristics of the fluid on the blades 2 through the continuous waveform grooves 4 on the blades 2, the kinetic energy conversion efficiency is improved. The continuous waveform grooves 4 can guide the fluid to the optimal flow path, reduce the generation of flow separation and eddy current, and thereby reduce the noise and vibration of the water pump, improving the practicability of the device.

[0026] As Figures 1 to 5 shown, an impeller structure for improving the performance of the pump and reducing losses of the present invention, when it works, first turn on the water pump to drive the lower cover 1 to rotate. The rotating blades 2 pump out the liquid. During the process of following the rotation of the blades 2, the liquid is pressed against the side surface of the blades 2, and the continuous waveform grooves 4 are used to increase the kinetic energy conversion efficiency of the device.

[0027] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can still be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An impeller structure for improving pump performance and reducing losses; characterized in that, It includes a lower cover (1), blades (2), an upper cover (3) and continuous corrugated grooves (4). Multiple groups of blades (2) are arranged on the lower cover (1). Continuous corrugated grooves (4) are arranged on the side surfaces of the blades (2). The upper cover (3) is cooperatively connected with the lower cover (1).

2. The impeller structure for improving pump performance and reducing losses according to claim 1, characterized in that It further includes that the continuous corrugated grooves (4) are arranged on the pressed surface of the blades (2).

3. An impeller structure for improving pump performance and reducing losses as described in claim 1, characterized in that, It further includes that the processing length of the continuous corrugated grooves (4) is two-thirds of the length of the blades (2).

4. The impeller structure for improving pump performance and reducing losses according to claim 1, characterized in that, It further includes that the main bodies of the lower cover (1) and the upper cover (3) are processed by an injection molding process and are connected by welding.

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