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On-line anti-fouling ship ballast water treatment system and ship ballast water treatment method

A ship ballast water and treatment system technology, applied in water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve filter fouling, filter can only be disassembled and cleaned manually And other issues

Active Publication Date: 2015-08-05
SUNRUI MARINE ENVIRONMENT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of filter fouling, there is currently no online automatic antifouling method and device for filters used in ship ballast water treatment systems at home and abroad, and the fouled filters can only be disassembled and cleaned manually

Method used

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  • On-line anti-fouling ship ballast water treatment system and ship ballast water treatment method
  • On-line anti-fouling ship ballast water treatment system and ship ballast water treatment method
  • On-line anti-fouling ship ballast water treatment system and ship ballast water treatment method

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The antifouling technology of the present invention is applied on a 72000DWT chemical tanker, and the rated flow rate of the ballast pump 1 is 2000m 3 / h. The ship's ballast water treatment system of the present invention is arranged on board see figure 1 .

[0037] A tee joint 15 is installed at the drain outlet 17 of the filter 2, and when the ballasting process ends (i.e. when the ballast pump 1 stops working), a certain amount of water is extracted from the ballast water main pipeline 11 with the second dosing pump 12 The seawater that is filtered and processed by the electrolysis unit 3 is injected into the filter 2 via the dosing pipeline 13 and the three-way joint 15, and the second dosing pump 12 runs for 3 minutes. When the second dosing pump 12 stops running, Close all valves (i.e. the third valve 23, the fourth valve 24 and the first electromagnetic valve 14) connected to the sewage outlet 17 of the filter 2, so that the treated seawater remains in the filt...

Embodiment 2

[0040] The antifouling technology of the present invention is applied on a 350000DWT ore ship, and the rated flow rate of the ballast pump 1 is 4000m 3 / h. The ship's ballast water treatment system of the present invention is arranged on board see figure 1 .

[0041] A tee joint 15 is installed at the drain outlet 17 of the filter 2, and when the ballasting process ends (i.e. when the ballast pump 1 stops working), a certain amount of water is extracted from the ballast water main pipeline 11 with the second dosing pump 12 The seawater that is filtered and processed by the electrolysis unit 3 is injected into the filter 2 via the dosing pipeline 13 and the three-way joint 15, and the second dosing pump 12 runs for 4 minutes. When the second dosing pump 12 stops running, Close all valves (i.e. the third valve 23, the fourth valve 24 and the first electromagnetic valve 14) connected to the sewage outlet 17 of the filter 2, so that the treated seawater remains in the filter 2 u...

Embodiment 3

[0044] The antifouling technology of the present invention is applied on a 180000DWT bulk carrier, and the rated flow rate of the ballast pump 1 is 3000m 3 / h. The ship's ballast water treatment system of the present invention is arranged on board see figure 1 .

[0045] A tee joint 15 is installed at the drain outlet 17 of the filter 2, and when the ballasting process ends (i.e. when the ballast pump 1 stops working), a certain amount of water is extracted from the ballast water main pipeline 11 with the second dosing pump 12 The seawater that is filtered and processed by the electrolysis unit 3 is injected into the filter 2 via the dosing pipeline 13 and the three-way joint 15, and the second dosing pump 12 runs for 5 minutes. When the second dosing pump 12 stops running, Close all valves (i.e. the third valve 23, the fourth valve 24 and the first electromagnetic valve 14) connected to the sewage outlet 17 of the filter 2, so that the treated seawater remains in the filter...

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Abstract

The invention provides an on-line anti-fouling ship ballast water treatment system which comprises a ballast water main pipeline, a ballast water branch pipeline, a chemicals feeding pipeline, a filter, an electrolysis unit and a chemicals feeding pump, wherein the filter is positioned on the ballast water main pipeline, the electrolysis unit is positioned on the ballast water branch pipeline, the chemicals feeding pump is positioned on the chemicals feeding pipeline, part of seawater of the ship ballast water treatment system is introduced and filtered by the filter and then flows to the ballast water branch pipeline and the electrolysis unit, the part of the seawater which is electrolyzed by the electrolysis unit is reinjected to the filter through the chemicals feeding pump and the chemicals feeding pipeline after a ballast process is completed, and the part of the seawater is kept in the filter for a certain time. According to the on-line anti-fouling ship ballast water treatment system, after the ballast process is completed, a TRO solution obtained by electrolysis treatment of the seawater is reinjected to the filter and is kept in the filter until the next ballast process is started, so that the growth and propagation of marine organisms in the filter can be inhibited by sodium hypochlorite contained in the TRO solution when a ballast pump stops operating. In addition, the invention further provides an on-line anti-fouling ship ballast water treatment method.

Description

technical field [0001] The invention relates to ship ballast water treatment technology, in particular to a ship ballast water treatment system and a ship ballast water treatment method capable of on-line antifouling. Background technique [0002] During the voyage of the ship, ballast is an inevitable state. When the ship is loaded with ballast water, the local aquatic organisms are also loaded into the ballast tank, and are discharged with the ballast water after the voyage is over. to the destination area. Ballast water follows ships from one place to another, causing the spread of harmful aquatic organisms and pathogens. In order to effectively control and prevent the spread of harmful aquatic organisms and pathogens in ships' ballast water, the International Maritime Organization (IMO) passed the "International Convention on the Control and Management of Ships' Ballast Water and Sediments" in 2004. The "Convention" stipulates that all ships must install ballast water ...

Claims

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Application Information

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IPC IPC(8): C02F9/06B63J4/00C02F1/461C02F1/50
Inventor 刘光洲段东霞姚萍
Owner SUNRUI MARINE ENVIRONMENT ENG
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