Permanent magnet immersed pump facilitating water leakage detection

Abstract

The invention relates to the technical field of immersed pumps, in particular to a permanent magnet immersed pump facilitating water leakage detection. The permanent magnet immersed pump comprises a pump body, a flow channel is connected to the outer side of the bottom of the pump body, a leakage detection probe is arranged in an oil chamber in the pump body, and the oil chamber in the pump body is connected with a bearing chamber through an overflowing channel; the overflowing channel comprises a main body pipe, end covers are arranged at two ends of the main body pipe, a plurality of flow holes are formed in the outer walls of the end covers, pressing mechanisms are installed on the inner walls of two ends of the main body pipe, each pressing mechanism comprises an L-shaped plate, the tops of the vertical ends of the L-shaped plates are tightly welded to the inner wall of the main body pipe, and a fixing rod is tightly welded to the top of the horizontal end of each L-shaped plate. According to the permanent magnet immersed pump facilitating water leakage detection, through the designed overflowing channel, when entering the bearing chamber, water can quickly reach the leakage detection probe through the overflowing channel, then an alarm is given, a machine is stopped, and a bearing and a motor are protected in time; and the end covers at the two ends of the overflowing channel are convenient to mount and dismount, and therefore, the overflowing channel can be conveniently opened and cleaned at regular time.

Description

technical field [0001] The invention relates to the technical field of submersible pumps, in particular to a permanent magnet submersible pump which is convenient for water leakage detection. Background technique [0002] The permanent magnet submersible pump is powered by a high-speed permanent magnet DC brushless motor, and its volume and weight are much smaller than conventional axial flow pumps. The water pump is a new type of aluminum alloy submersible pump with the advantages of large flow, high efficiency and energy saving, small size, light weight, and intelligence. [0003] The probe of the existing submersible pump is installed in the oil chamber, which has a certain distance from the bearing chamber. When in use, the bearing has a certain risk of leakage. When water enters the bearing chamber, the water cannot quickly reach the leak detection probe. A certain process is required, and it takes a certain amount of time for the leak detection probe to detect water i...

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Problems solved by technology

[0003] The probe of the existing submersible pump is installed in the oil chamber, which has a certain distance from the bearing chamber. When in use, the bearing has a certain risk of leakage. When water enters the bearing chamber, the water cannot quickly reach the leak detection probe. A certain process is required, which leads to a certain time for the leak detection probe to detect water ingress, resulting in a certain delay in the alarm, which is not conducive to the timely protection of bearings and motors

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