CN201770563U

CN201770563U - Ballast water treating system

Info

Publication number: CN201770563U
Application number: CN 201020177568
Authority: CN
Inventors: 王伟; 许智杰
Original assignee: Dalian Maritime University
Current assignee: Dalian Maritime University
Priority date: 2010-04-30
Filing date: 2010-04-30
Publication date: 2011-03-23
Anticipated expiration: 2020-04-30

Abstract

The utility model relates to a rotational flow-ultraviolet ray combined ballast water treating system, which comprises a centrifugal pump, a filter, a ultraviolet reactor, a flow meter and water storage tanks, wherein the ballast water flown from the water storage tank (7) flows through the flow meter (2) to undergo the preliminary filter by the filter (3) when being driven by the centrifugal pump (1), then undergoes the secondary treatment by the ultraviolet reactor (4), and finally flows into the water storage tank (6). The average inactivation ratio of the utility model amounts to more than 98 percent, the combined equipment is simple and easy to maintain, the invested maintenance cost is low, and the treating cost is one fifth of that required in the traditional method.

Description

Ballast water treatment system

Technical field

The utility model belongs to water-treatment technology field, is specifically related to a kind of ship ballast water treatment system.

Background technology

Along with the development of world economy and trade, annual newly-increased boats and ships quantity and loading capacity are increased sharply, and the goods in the whole world 80% is transported by boats and ships, nearly about 10,000,000,000 tons of the water ballast of annual running.There is every day 3000-4000 kind living species to propagate in the world with ballast water for ship.Discharge of ballast water not only carries unwanted bacteria, and the part biological kind is understood the local ecology of serious harm even caused species extinction.The discharging ballast water for ship has been confirmed as one of four big threats of harm ocean by Global Environment Facility's tissue.

Ballast water for ship has caused the loss that is difficult to remedy for each maritime nation, therefore working out can be safe, practical, economical, effectively and the ballast water processing of environment permission be subjected to each maritime nation's great attention.General in the world ballast water for ship management process can be divided three classes: water ballast displacement, water ballast are isolated and ballast water treatment.

The water ballast displacement is promptly replaced the water ballast of boats and ships after boats and ships arrive specific region or deep-sea, and its principle is: living in fresh water, river mouth and most shallow sea biologies is impossible survive under the environment at deep-sea, and vice versa; It is also very little by the possibility of other boats and ships resorb that next is discharged into the biology of surviving in the deep-sea.This method is one of effective means that is considered at present to prevent harmful organism and pathogen transfer, but since the water ballast substitution method can not to satisfy the calibration of D-2 rules and regulations accurate, the various countries scientific research personnel is also at the ballast water processing of attempting to study more effective more environmental protection.

It is that ballast water for ship and settling are transported on the bank that water ballast is isolated, and is handled by special reception facilities, to eliminate ballast water for ship ocean environment is influenced.Because boats and ships need successive to arrange into or discharge water ballast according to the difference of weather, sea situation etc. sometimes, can not be transported to whole water ballasts and handle on the bank, otherwise boats and ships will bear bigger risk, cost is also bigger.

Ballast water treatment comprises mechanical process, chemical method and physics method.

Mechanical process be by filter or cyclonic separation with biology in the water ballast and pathogen isolation, but it can not separate with virus well to tiny microorganism.

Chemical method comprises that chlorination, ozone, electrolysis also have hydroxyl oxidize, PERACLEAN Methods such as OCEAN, SEAKLEEN, propenal, deoxidation.But chemical method is to the corrosion and the serious environment pollution of equipment.

The physics method comprises than three kinds of thermal treatment, ultrasonic wave and UV treatment.Wherein heating can kill most of biological, but must the repacking piping, can produce thermal stresses, heat source insufficiency, winter poor processing effect.Ultrasonic wave may produce the influence to ship structure integrity and operator ' s health.The applied research of ultraviolet water treatment technology was risen at the beginning of 20 21 centurys in the end of the century, and using the UV radiation to carry out sterilization has abroad had for many years history.To the area of bacterium discharging by strict demand, great majority have adopted ultraviolet method more in the world, and sanitary sewage that China is a lot of and industrial sewage treatment plant are also adopting ultraviolet method.

The utility model content

In order to remedy the deficiency of above-mentioned ballast water processing, the utility model provides a kind of ballast water treatment system.

Technical solution adopted in the utility model is that a kind of ballast water treatment system includes impeller pump, strainer, uv reactor, under meter and water storage cabinet.Effusive liquid drives by impeller pump earlier in the water storage cabinet, and the under meter of flowing through then carries out secondary treatment through entering uv reactor after the preliminary filtration of strainer, has pipeline to link to each other between two water storage cabinets, can carry out circulating water treatment.

The utility model has emphatically proposed the average inactivation ratio of this combined treatment water ballast of ballast water processing that eddy flow-ultraviolet ray makes up from point of view of practicability and has reached more than 98%, clustered aggregates simply is easy to maintaining, the investment maintenance cost is low, and processing cost is 1/5 of traditional method approximately.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further specified

Fig. 1 is that the ballast for cruising current revolve---the ultraviolet disinfection system flowchart

1. impeller pumps among the figure, 2. under meter, 3. strainer, 4. uv reactor, 5. thief hole, 6. water storage cabinet, 7. water storage cabinet.

Embodiment

Embodiment of the present utility model is referring to Fig. 1, and under the driving of impeller pump 1, the under meter 2 of flowing through passes through the preliminary filtration of strainer 3, enters uv reactor 4 then and carries out secondary treatment, flows into water storage cabinet 6 at last from water storage cabinet 7 effusive water ballasts.

Claims

1. a ballast water treatment system includes impeller pump (1), strainer (3), uv reactor (4), under meter (2) and water storage cabinet (6) and (7), it is characterized in that, water ballast passes through uv reactor (4) after filtering by strainer (3) again.

2. ballast water treatment system according to claim 1 is characterized in that, effusive liquid drives by impeller pump (1) earlier from water storage cabinet (7).

3. ballast water treatment system according to claim 1 is characterized in that, comes the flow of controlled liq from the effusive liquid of impeller pump (1) by under meter (2).

4. ballast water treatment system according to claim 1 is characterized in that, by pipe connection, can realize circular treatment in the middle of water storage cabinet (6) and the water storage cabinet (7).