Submersible electric pump with combined impeller

Abstract

The invention discloses a submersible electric pump with a combined impeller, and belongs to the technical field of water pumps. A water pump and a submersible motor are included; the water pump and the submersible motor are connected into a whole; a shaft of the water pump penetrates through the water pump, a shaft of the submersible motor penetrates through the submersible motor, and the shaft of the water pump is connected with the shaft of the submersible motor through a coupler; a water inlet joint of the water pump is connected with a pump body, the water inlet joint and the pump body are fixed into a whole through fastening bolts, and a lower half part of the pump body is a front joint; the shaft penetrates through the water inlet joint and the pump body; the water inlet joint is wrapped with a water inlet filter screen, a shaft in the water inlet joint is connected to a bearing seat through a bearing, and the upper end of the bearing is connected with a framework seal; a frontimpeller and an impeller are sequentially positioned and connected to the shaft through keys, and the front impeller is located in a front section of the pump body; and a positioning sleeve is connected to the shaft and at the joint of the water inlet joint and the pump body in a sleeving mode. The submersible electric pump has the advantages that the impact loss of water flow is reduced, and theefficiency of the water pump is improved while the flow and lift of the water pump are increased; and the submersible electric pump is simple and convenient to use, and the application range of the water pump is expanded.

Description

technical field [0001] The invention relates to the technical field of water pumps, in particular to a submersible electric pump with combined impellers. Background technique [0002] The existing submersible electric pump water pump part is composed of two main components: the impeller and the guide body. In order to improve the head of the submersible electric pump, a combination of two-stage or multi-stage impellers is generally used. At the same time, each stage of the impeller must be equipped with a corresponding guide body. At the same time, it is required that the impellers of each stage must be matched, so that the head of the pump must be doubled during use. Due to the need for the head of the submersible pump, the head may not necessarily be doubled. Moreover, if the water pump with multi-stage impellers must The configuration of the corresponding guide body increases the axial height of the water pump, which brings certain difficulties to the overall design of th...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a submersible electric pump with a combined impeller, which solves the problem that the axial height of the water pump needs to be increased to increase the head of the submersible electric pump, which brings difficulties to the overall design of the water pump

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