High-pressure liquid bag sewage discharge device, sewage discharge system and ship

The high-pressure liquid bag sewage discharge device uses the pressure difference of clean seawater to expand and squeeze out sewage. Combined with the flange connection and split shell design, it solves the problems of high energy consumption and insufficient stability of traditional ship sewage discharge devices, and achieves efficient and stable sewage discharge effects.

CN120207519BActive Publication Date: 2025-09-23CHINA STATE SHIPBUILDING CORP LTD RESEARCH INSTITUTE 719
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Patent Information

Application Number
CN202510696518.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-05-28
Publication Date
2025-09-23
Estimated Expiration
2045-05-28

AI Technical Summary

Technical Problem

Traditional ship sewage treatment equipment has high energy consumption and insufficient performance under complex working conditions, especially when affected by seawater back pressure and corrosion, resulting in low energy utilization.

Method used

A high-pressure liquid bladder sewage discharge device is used, which uses a flexible liquid bladder to expand under the pressure difference of clean seawater to squeeze out sewage. Combined with flange connection and split shell design, it can achieve isolation of clean seawater and sewage and efficient sewage discharge.

Benefits of technology

It reduces the energy consumption of sewage discharge, improves sewage discharge efficiency and device stability, reduces maintenance costs, extends equipment life, and reduces noise pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of sewage disposal equipment and discloses a high-pressure liquid bladder sewage disposal device, a sewage disposal system, and a ship. The high-pressure liquid bladder sewage disposal device includes a housing and a liquid bladder. The housing has a first accommodating cavity within it, and a first opening and a second opening are formed in the housing. The first opening and the second opening extend through the housing and are selectively connected to the first accommodating cavity. The liquid bladder is located in the first accommodating cavity and has a second accommodating cavity within it. The liquid bladder has a third opening that is connected to the second accommodating cavity, and the third opening is connected to the first opening. The liquid bladder is at least partially constructed as a flexible member, so that when clean seawater is introduced into the second accommodating cavity through the first opening, the volume of the liquid bladder increases and discharges sewage in the first accommodating cavity. When clean seawater in the second accommodating cavity is discharged through the first opening, the volume of the liquid bladder decreases. The high-pressure liquid bladder sewage disposal device of the present application reduces energy consumption.
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Citation Information

Patent Citations

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