Water hammer impact wave pulsation system applied to ship ballast water treatment

Abstract

The invention discloses a water hammer shock wave pulsation system applied to ship ballast water treatment, which comprises a ballast tank and a treatment room, and the ballast tank is sequentially connected to the inlet of the treatment room through a centrifugal pump, a cyclone separator and a regulating valve One way of the outlet of the treatment chamber is connected with the ballast tank through the impact valve, and the other way of the outlet of the treatment chamber is connected with the inlet of the treatment chamber through the spring check valve and the first energy storage tank. A water hammer shock wave pulsation system applied to ship ballast water treatment according to the present invention can cause pressure pulsation through continuous water hammer and apply it to ship ballast water disinfection, which can effectively reduce costs and save energy. Effect, when the pressure shock wave in the system turns into a negative phase (low pressure), the hydraulic cavitation effect will occur, which can generate enough energy to kill microorganisms and bacteria in the ballast water, and complete the treatment process of the ship's ballast water.

Description

technical field [0001] The invention relates to a water hammer shock wave pulsation system applied to ship ballast water treatment, and belongs to a ballast water sterilization and disinfection device. Background technique [0002] Ships have long used ballast water to ensure ship stability and navigational safety. Ballast water is vital to the safety of ships, especially bare ships. Most ships use ballast water to adjust draft, change trim, adjust stability, or maintain proper stress. Due to the different installation locations of the ballast water, the ballast water can be fresh water, river-sea mixed water or sea water. Ballast water will contain algae, molluscs, fish and plants etc. It is estimated that ships around the world carry about 3-5 billion tons of ballast water every year, and ships carry 7,000 to 10,000 species of aquatic organisms every day due to ballast water. Research has shown that various bacteria, plants and animals live in ballast water in differen...

AI Technical Summary

Problems solved by technology

At present, there are many single methods such as mechanical, physical, and chemical methods used in the research, but there are certain limitations when applied to ships, and the treatment effect is not ideal

For example, ultraviolet disinfection can only treat thin water layers due to the problem of weak penetrating power, and is limited by parameters such as chromaticity, turbidity, organic matter and exclusion of ballast water

Traditional ship ballast water disinfection uses a variety of single methods such as mechanical, physical, and chemical, but there are certain limitations when applied to ships, and the treatment effect is not ideal

The cavitation process of ultrasonic waves will also cause damage to the surface or structure of the water bulkhead, which brings a series of problems to the application of ultrasonic waves in the field of ballast water

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