A Submarine Sewage Pump with High Reliability and Sealing

Abstract

The invention belongs to the technical field related to sewage pumps, and discloses a highly reliable and sealed submarine sewage pump. The submarine sewage pump includes an inlet shell, a stator steel sleeve, a rubber stator poured on the inner wall of the stator steel sleeve, and an outlet Housing and cutter, the two ends of the stator steel sleeve are respectively connected to the inlet housing and the outlet housing, the cutter is arranged in the inlet housing; the inlet housing is trumpet-shaped, its diameter From the end of the inlet housing far away from the outlet housing, it gradually decreases to the end of the inlet housing adjacent to the outlet housing; an outlet is provided in the middle of the outlet housing, and the outlet is connected to the external high-pressure environment connected; the inlet housing, the rubber stator and the outlet housing are connected; the present invention reduces noise and cost, has better applicability and better sealing performance.

Description

technical field [0001] The invention belongs to the related technical field of sewage pumps, and more specifically relates to a highly reliable and sealed submarine sewage pump. Background technique [0002] Submarines have been valued by countries since World War I, and now they have become an important tool for countries to explore the ocean and a powerful marine military weapon. With the development of science and technology and the times, people's requirements for the safety, concealment and comfort of submarines have been greatly increased. [0003] The traditional submarine sewage discharge method is the gas blowing sewage discharge method, the working process is accompanied by loud noise, the generated air bubbles reduce the concealment of the submarine, the operation procedure is complicated, the reliability of the working process is low, and the noise and odor generated during the recovery of compressed gas will affect Disadvantages such as the living environment i...

AI Technical Summary

Problems solved by technology

For conventional single screw pumps, since the inlet is in the middle of the pump body, it is inconvenient to assemble a cutter to cut the fibrous matter in the medium, which may cause the fibrous matter to be entangled on the universal joint and affect its working performance. It is necessary to install a special cutting mechanism at the entrance, which not only increases the cost but also takes up space; the use of oil lubricated bearings requires regular refueling and maintenance, and the leakage of lubricating oil will pollute the environment; the use of mechanical seals will cause wear and failure after long-term operation, and cannot Completely seals against odors

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