Pump with heating function

Abstract

The invention discloses a pump with a heating function. The pump comprises an end cover and an impeller arranged in the end cover, and further comprises an annular pipe bent into a ring along a plane; a heating wire is arranged in the annular pipe in a penetrating manner; the annular pipe is wound around the central shaft of the impeller and is adjacent to the inner wall of the end cover; the ring diameter of the annular pipe is not larger than the rotating diameter of the impeller. According to the pump with the heating function, the annular pipe with the plane annular structure and the heating wire of the annular pipe are used for heating fluid in the end cover. On one hand, the mounting positions of the annular pipe and the heating wire on the end cover accord with the flowing characteristics of fluid in the end cover under the action of the impeller, the heating effect of the heating wire can be fully and effectively exerted, the heat exchange efficiency is improved, and the heating requirement is met; and on the other hand, the annular pipe reasonably utilizes the gap between the end cover and the impeller, the radial size of the pump cannot be increased, the axial size of the pump cannot be excessively increased either, and the overall size and the appearance shape of the pump can be controlled easily.

Description

technical field [0001] The invention relates to the field of pumps, in particular to a pump with heating function. Background technique [0002] In order to increase the heating function of existing dishwasher pumps, heating elements are usually arranged inside or outside the pump. [0003] For the heating element installed outside the pump, not only the heat exchange efficiency is low, the safety is poor, but also the size and shape of the pump are increased in complexity. For the heating element installed in the pump, such as the helical heating tube, it will increase the difficulty of installing other components in the pump, resulting in a significant increase in the size of the pump casing, which seriously affects the hydraulic efficiency of the pump. [0004] Therefore, how to reduce the impact on the size and hydraulic efficiency of the pump on the basis of meeting the heating demand of the pump has become a technical problem urgently to be solved by those skilled in ...

AI Technical Summary

Problems solved by technology

[0003] For the heating element installed outside the pump, not only the heat transfer efficiency is low, the safety is poor, but also the size and shape of the pump are increased.

For the heating element installed in the pump, such as the spiral heating tube, it will increase the difficulty of installing other parts in the pump, resulting in a significant increase in the size of the pump shell, which seriously affects the hydraulic efficiency of the pump

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