CN204714623U - A kind of apparatus for treating ship ballast water - Google Patents

Abstract

The utility model patent discloses a ship ballast water treatment device, which includes a rotary separator, a hydrochloric acid storage tank, a sodium chlorate storage tank, a double-headed peristaltic pump, a reaction kettle, and a jet device. One end of the cyclone separator is connected to the ballast water inlet pipe, and the other end is connected to the ejector; the described ejector is connected to the ballast water outlet pipe; The sodium storage tank is connected, and the other end leads to the reaction kettle; the solid waste filtered by the cyclone separator is discharged from the filter residue outlet. The device can completely kill the microorganisms in the ship's ballast water through the rotary separator and the chlorine dioxide disinfection two-stage method.

Description

A ship ballast water treatment device

technical field

The utility model patent relates to the field of ballast water, in particular to a ship ballast water treatment device.

Background technique

Ships for transporting ore, crude oil, etc. are equipped with ballast tanks, and ballast water such as seawater or fresh water is stored in the ballast tanks to control the posture of the hull and ensure stability. When the ship is empty, ballast water is introduced into the ballast tank, and the ballast water is discharged from the ballast tank as loading progresses. Therefore, ballast water is discharged in a region different from the water intake area, and aquatic organisms, bacteria, etc. are transferred together with the ballast water, and these aquatic organisms, bacteria, etc. may colonize in a new environment. According to statistics, there are as many as 3,000-4,000 species of organisms carried in ballast water every day in the world. When ocean-going ships inject and discharge ballast water, it is easy to cause harmful aquatic organisms and pathogens to spread across the sea. Alien organisms that spread with ballast water discharges pose a serious threat to the marine environment of port states.

In order to deal with the biological invasion brought by the ship's ballast water, in 2004, the International Maritime Organization (IMO) formulated the "Convention on the Control and Management of Ship's Ballast Water and Sediments", which has become a mandatory international convention. The main content of this Convention is to control the transfer of ballast water and residues containing dangerous aquatic organisms and pathogens. The nearest land is at least 200 nautical miles and the water depth is at least 200m. Therefore, a safe, efficient, fast and low-cost ship ballast water treatment system must be installed on the ship.

In the current treatment of pest invasion in ship ballast water, larger organisms can be removed by physical filtration, but single-celled organisms and tiny protozoa are too small to be effectively removed by this method. Single-cell organisms and tiny protozoa can be eliminated by chemical methods, such as ozone method and ray method, which are more common at present.

The Chinese invention patent with the patent number 200510046991.8 discloses a "ship ballast water electrolysis treatment system". This system sterilizes ballast water by generating available chlorine through electrolysis, but it consumes a lot of energy to sterilize ballast water, and the effect on large multicellular organisms, such as algae, is not obvious. Patent No. 201110364532.X Chinese invention patent discloses a ballast water treatment method for ocean-going ships, which mainly kills microorganisms in the water by removing oxygen from the water, but it is not obvious for the disinfection of anaerobic organisms, and it can consumes more.

Utility model content

The problem to be solved by this utility model patent is to overcome the shortcomings and deficiencies of the prior art, and provide a device that can completely kill aquatic organisms through the filtration of the cyclone separator and the two-stage method of chlorine dioxide disinfection.

The utility model patent has the following technical solutions: a ship ballast water treatment device, including a spin separator 6, a hydrochloric acid storage tank 11, a sodium chlorate storage tank 13, a double-headed peristaltic pump 9, a reactor 14, and a fluidizer 15; one end of the cyclone separator 6 is connected to the ballast water inlet pipe 2, and one end is connected to the jet 15; the jet 15 is connected to the ballast water outlet pipe 3; one end of the double-headed peristaltic pump 9 It is connected with the hydrochloric acid storage tank 11 and the sodium chlorate storage tank 13, and the other end leads to the reaction kettle 14; the filter residue outlet 7 is the outlet of the solid waste filtered by the cyclone separator 6; the chlorine dioxide waste liquid outlet 8 is the reaction residual liquid outlet .

A kind of ballast water treatment device described, its aeration inlet pipe 1, sodium chlorate inlet pipe 4, hydrochloric acid inlet pipe 5, hydrochloric acid pipeline 10, hydrochloric acid storage tank 11, sodium chlorate pipeline 12, sodium chlorate storage tank 13. Reactor 14 and ejector 15 are made of acid-resistant PVC.

The beneficial effects of the utility model patent are: 1. The overall structure design of the device is reasonable, the structure is relatively simple, and the cost is low; 2. The device can complete the purification of ballast water at a relatively low cost through filtration and chlorine dioxide two-stage method. deal with.

Description of drawings

Figure 1 is a block diagram of the device: 1. Aeration inlet pipe 2. Ballast water inlet pipe 3. Ballast water outlet pipe 4. Sodium chlorate inlet pipe 5. Hydrochloric acid inlet pipe 6. Cyclone separator 7. Filter residue outlet 8. Chlorine dioxide waste liquid outlet 9. Double-head peristaltic pump 10. Hydrochloric acid pipeline 11. Hydrochloric acid storage tank 12. Sodium chlorate pipeline 13. Sodium chlorate storage tank 14. Reactor 15. Ejector.

Detailed ways

Below in conjunction with specific embodiment, the utility model patent is further described.

A. The ballast water to be treated flows into the cyclone separator 7 through the ballast water inlet pipe 3. Larger sediment particles and larger organisms are discharged through the filter residue outlet 7, and the filtered water enters the subsequent disinfection stage. .

B. The ejector 15 forms a negative pressure after the water flows through, so that the air enters the reaction kettle through the aeration inlet pipe 2, and the aeration produces chlorine dioxide, which enters the water to complete disinfection under the mixing of the Venturi tube.

C. The reaction liquid in the reaction kettle 14, according to the difference in the water treatment capacity, controls the liquid addition rate of the peristaltic pump, thereby controlling the gas production rate to vary with the water treatment capacity.

Claims (2)

1. an apparatus for treating ship ballast water, comprises and revolves a point separator (6), hydrochloric acid tank (11), sodium chlorate storage tank (13), double end peristaltic pump (9), reactor (14), ejector (15); A wherein said point separator (6) one end of revolving is connected with water ballast inlet pipe (2), and one end connects ejector (15); Described ejector (15) is connected with water ballast outlet pipe (3); Described double end peristaltic pump (9) one end is connected with hydrochloric acid tank (11), sodium chlorate storage tank (13), and the other end leads to reactor (14); Sludge outlet (7) filters out the outlet of solid waste for revolving a point separator (6); Dioxide peroxide waste liquid outlet (8) is reaction residue outlet.

2. a kind of apparatus for treating ship ballast water according to claim 1, is characterized in that: the material PVC that aeration inlet pipe (1), sodium chlorate inlet pipe (4), hydrochloric acid inlet pipe (5), hydrochloric acid pipeline (10), hydrochloric acid tank (11), sodium chlorate pipeline (12), sodium chlorate storage tank (13), reactor (14), ejector (15) are acid corrosion-resistant.