Ballast water treatment device

Patent metadata

Field	Value
Publication number	US-2018111069-A1
Application number	US-201615382361-A
Country	US
Kind code	A1
Filing date	Dec 16, 2016
Priority date	Oct 21, 2016
Publication date	Apr 26, 2018
Grant date	—

Abstract

Provided is a ballast water treatment device that can discharge ballast water stored in a casing quickly and in a preferable manner. The ballast water treatment device 1 is provided with: a casing 10 ; a filter 20 which is disposed in the casing 10 and which filters ballast water; an introduction portion 14 which introduces ballast water to a primary side of the filter 20 ; a first discharge portion in the casing 10 for discharging the ballast water from the primary side of the filter 20 ; and a second discharge portion 131 which is disposed at a lower portion of the casing 10 at a secondary side of the filter 20 , and which discharges the ballast water from the secondary side of the filter 20.

First claim

What is claimed is:

1 . A ballast water treatment device comprising:
a casing; a filter disposed in the casing to filter ballast water; an introduction portion for introducing the ballast water to a primary side of the filter; a first discharge portion in the casing for discharging the ballast water from the primary side of the filter; and a second discharge portion disposed at a lower portion of the casing at a secondary side of the filter to discharge the ballast water from the secondary side of the filter.

2 . The ballast water treatment device according to claim 1 , further comprising a communication unit providing communication between the primary side and the secondary side of the filter.

3 . The ballast water treatment device according to claim 2 , wherein the communication unit connects the second discharge portion and the introduction portion.

4 . The ballast water treatment device according to claim 1 , further comprising a compressed gas supply unit for supplying compressed gas into the casing.

5 . The ballast water treatment device according to claim 3 , further comprising a compressed gas supply unit for supplying compressed gas into the casing.

6 . The ballast water treatment device according to claim 5 , wherein the compressed gas supply unit supplies the compressed gas between the filter and the casing.

7 . The ballast water treatment device according to claim 3 , wherein the introduction portion has a cross sectional flow passageway area greater than a cross sectional flow passageway area of the first discharge portion.

8 . The ballast water treatment device according to claim 4 , wherein the introduction portion has a cross sectional flow passageway area greater than a cross sectional flow passageway area of the first discharge portion.

9 . The ballast water treatment device according to claim 5 , wherein the introduction portion has a cross sectional flow passageway area greater than a cross sectional flow passageway area of the first discharge portion.

10 . The ballast water treatment device according to claim 1 , further comprising an introduction line connected to the introduction portion to supply the ballast water to be filtered into the casing, wherein
the first discharge portion includes a discharge line for discharging the ballast water in the casing, with one end of the discharge line being connected to the introduction line or the introduction portion.

Assignees

• Miura Kogyo Kk

Inventors

• Saito Yasuhiko

Classifications

• C02F1/004

  using large scale industrial sized filters · CPC title

• B01D33/06

  with rotary cylindrical filtering surfaces, e.g. hollow drums (B01D33/044 takes precedence {; rotating drums for paper-making D21B}) · CPC title

• B01D35/02

  Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks, (B01D35/05 takes precedence; {water pipe system filters E03B3/18, E03B7/07; dirt catchers in sewers E03F; filters or strainers for pipe-lines in general B08B, E03F; object or dirt catching devices in sinks or the like E03C1/26; suction strainers or filters for pumps F04B53/005, F04D29/70}) · CPC title

• C02F2303/16

  Regeneration of sorbents, filters · CPC title

• C02F2103/008

  Originating from marine vessels, ships and boats, e.g. bilge water or ballast water · CPC title