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Closed impeller, heating pump and dish washing machine

A closed impeller, heating pump technology, applied in water heaters, non-variable capacity pumps, fluid heaters, etc., can solve the problems of poor fluid heating effect, low pump efficiency, and difficulty in forming swirl flow.

Active Publication Date: 2018-05-29
GUANGDONG WELLING ELECTRIC MACHINE MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, due to the influence of the front cover of the closed impeller, it is difficult for the fluid located between the front cover and the heating part (especially the fluid directly above the front cover) to form a swirling flow, which makes the heating effect of the heating part on the fluid ineffective. ; while the open impeller does not have a front cover, it can form a swirling flow with a high flow rate above the impeller, but there is a problem of large fluid return between it and the water inlet pipe, resulting in low pump efficiency

Method used

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  • Closed impeller, heating pump and dish washing machine
  • Closed impeller, heating pump and dish washing machine
  • Closed impeller, heating pump and dish washing machine

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Embodiment Construction

[0031] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0032] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0033] In the present invention, unless stated to the contrary, the used orientation words such as "up, down, top, bottom" generally refer to the directions shown in the drawings or refer to the vertical, perpendicular or gravitational directions The terms used to describe the mutual positional relationship of the various components mentioned above.

[0034] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0035] Aiming at th...

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Abstract

The invention relates to the field of household appliances, and discloses a closed impeller, a heating pump and a dish washing machine. The closed impeller (10) comprises a front cover plate (1), a rear cover plate (2) and multiple blades (3) which are centrally arranged and are spaced circumferentially, wherein the front cover plate is in a circular ring shape and is arranged on the upper part ofthe blade top surfaces of the blades, and the outer diameter of the front cover plate is smaller than the outer diameter of the blades; and projection of the multiple blades on the rear cover plate forms a circular ring projection area, and the radial distance between the outer periphery of the front cover plate and the outer periphery of the circular ring projection area is not smaller than onehalf of the annular width of the circular ring projection area. According to the closed impeller, the outer diameter of the front cover plate is set to be smaller than the outer diameter of the blades, so that the heating pump has both the better heat exchange efficiency and the better pump efficiency.

Description

technical field [0001] The invention belongs to the field of household appliances, and in particular relates to a closed impeller, a heat pump and a dishwasher. Background technique [0002] With the continuous advancement of science and technology and the continuous improvement of people's living standards, heat pumps with heating and pumping functions are more and more widely used in people's lives. At the same time, the requirements for heat pumps are also getting higher and higher. To meet the needs of heating and have high performance. [0003] At present, the impellers of heat pumps mostly adopt open impellers and closed impellers. Among them, due to the influence of the front cover of the closed impeller, it is difficult for the fluid located between the front cover and the heating part (especially the fluid directly above the front cover) to form a swirling flow, which makes the heating effect of the heating part on the fluid ineffective. The open impeller does not...

Claims

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Application Information

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IPC IPC(8): F04D29/22F04D29/24F04D29/42A47L15/42F24H1/12F24H9/18
CPCA47L15/4285A47L2501/06F04D29/2222F04D29/242F04D29/426F24H1/121F24H9/1818Y02B40/00
Inventor 顾文海武秋红
Owner GUANGDONG WELLING ELECTRIC MACHINE MFG
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