Integrated pipeline pump

Abstract

The invention relates to the technical field of submersible electric pumps, and provides an integrated pipeline pump. The integrated pipeline pump comprises a pump shell, an impeller shaft, a pump impeller, a motor stator and a motor rotor, wherein the impeller shaft is connected with the pump shell through a plurality of pump guide vanes; a stator groove is formed in the inner wall of the pump shell; the motor stator is arranged at the bottom of the stator groove; the motor rotor is arranged on the rim of the pump impeller; an air gap is arranged between the motor rotor and the motor stator;a first flow passage and a second flow passage are respectively arranged between the two sides of the pump impeller rim and the two groove walls of the stator groove; and the first flow passage and the second flow passage respectively communicate with two ends of the air gap. According to the integrated pipeline pump, a cooling channel formed by the first flow channel, the air gap and the second flow channel is arranged between the motor stator and the motor rotor, and water flow pumped to the cooling channel is utilized, therefore, the natural water cooling of the motor stator and the motor rotor of the pipeline pump in the working process is achieved, and the safe and stable operation of the pipeline pump is ensured.

Description

technical field [0001] The invention relates to the technical field of submersible electric pumps, in particular to an integrated pipeline pump. Background technique [0002] Pump equipment is the key equipment of the ship's power system. There are a large number of pump equipment on the ship, including submersible electric pumps in the sea system. [0003] In the patent document No. 201611002413.9, an impeller built-in submersible pump with a stator coil protection sleeve is disclosed. This submersible through-flow pump includes a coaxially arranged pump housing, impeller shaft, pump impeller, stator and rotor. , wherein the impeller shaft is placed in the pump casing, the pump impeller is rotatably mounted on the impeller shaft, and the rotor is mounted on the rim of the pump impeller and corresponds to the stator mounted on the pump casing. In order to achieve a better heat dissipation effect on the stator coil of this submersible pump, the stator winding wire is designe...

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Problems solved by technology

[0004] It can be seen from the above that the existing submersible electric pump cannot realize self-cooling of its stator and rotor during work. In order to realize the cooling of its stator, it is necessary to separately design a closed space filled with clean soft water in the submersible electric pump. This space Occupies a large space volume, which is not conducive to the miniaturization design of the submersible electric pump, and the submersible electric pump needs to manually replenish soft water into the above-mentioned confined space at regular intervals, which is time-consuming and laborious in operation

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