Ship ballast water neutralizing device and neutralization method
[technical field]
The present invention relates to a kind of neutralizing device and neutralization method of ship ballast water, particularly a kind of being used for neutralizes and the neutralizing device and the neutralization method of germicidal treatment to the remaining toxic substance that ship ballast water generates.
[background technology]
Usually; Water ballast (Ballast Water) is meant when boats and ships navigate by water under the unloading or the less state of freighting; In order to prevent the boats and ships overbalance, the fresh water or the seawater that are used to adjust ship buoyance that in the water ballast storage tank of bottom of ship both sides, pour into.
In above-mentioned ship ballast water, there are a lot of fresh water and seawater mushroom and planktonic organism, when directly being discharged into other marine sites to these water if do not handle, ship ballast water destroys the eubiosis with the severe contamination ocean environment.
To these situation; The U.S. has formulated from 1996 about country's intrusion bacterial classification and has prevented bill, is defined as the invasion bacterial classification to external bacterial classification, has carried out mandatory ship ballast water management and control system; In addition; Relevant quarantine act has also been revised by Australia, is defined as the Quarantine Objects of inward cargo, the detection of directly quarantining to ship ballast water.
In addition, in February, the 2004, (IMO of International Maritime Organizaton; International Maritime Organization) formulated international convention,, required on boats and ships, to be provided with ship ballast water germicidal treatment facility from 2009; When ship was violated this regulation, the harbour can forbid that turn round berths.
For this reason, various countries are handling the technical research of ship ballast water aspect recently, and wherein, representational research and development technology is for utilizing ozone (Ozone:O
3) or electrolysis realize ship ballast water sterilization and purification; Aspect ozonize, the technical scheme of the ship ballast water treatment facility aspect of No. the 16091st, the Korean Patent of application in 2007 and No. 17653 and No. 19305 has obtained 10-769834 number, 10-775238 number, 10-802889 patent.
But, utilize original ship ballast water treatment facility of above-mentioned ozone sterilization technology in the germicidal treatment process, can generate the toxic substance that is similar to residual oxide (TRO, Total Residual Oxidants); In general, but these toxic substances natural decomposition after 1-5 days, therefore; For blue-water shipping; Such scheme is a feasible program, but short distance navigation or toxic substance be not when decomposing, and the ship ballast water of discharging will become source of pollution.
That is to say, during desire discharging ship ballast water, if in the ship ballast water of germicidal treatment, leave toxic substance,, can not discharge as early as possible, thereby have to postpone shipping because will wait until its natural decomposition.In addition, according to generating the geographic sea state of ship ballast water, if the long-time placement of toxic substance still can't be decomposed, also above-mentioned situation can appear.
[summary of the invention]
For addressing the above problem, in the manual work with ship ballast water in toxic substance, the invention provides a kind of ship ballast water neutralizing device and neutralization method.
In order to achieve the above object, technical scheme of the present invention is following:
A kind of ship ballast water neutralizing device comprises:
The water ballast storage tank is used for water ballast in the boats and ships is stored and ozone sterilization;
The water ballast water shoot is used for to the outside drain ship ballast water, and said water ballast water shoot links to each other with the discharging position of said water ballast storage tank;
Draining position inductor assembly is arranged on the draining position of said water ballast water shoot, to read the concentration of remaining toxic substance in the ship ballast water;
Neutralizing agent transfer lime, one of which end are arranged on the said water ballast water shoot, and between said draining position inductor assembly and said water ballast storage tank, are used for the neutralizing agent to said water ballast water shoot conveying and toxic substance;
The neutralizing agent storage tank is arranged on the other end of said neutralizing agent transfer lime, is used to store neutralizing agent;
The neutralizing agent transferpump is arranged on the said neutralizing agent transfer lime, is used to provide pressure to carry neutralizing agent so that it passes through said neutralizing agent transfer lime to said water ballast water shoot to said neutralizing agent storage tank; And
Unit receives the signal of said draining position inductor assembly, controls said neutralizing agent transferpump.
As preferred implementation, on said water ballast water shoot, and between said neutralizing agent transfer lime and said water ballast storage tank, water inlet position inductor assembly is set; Said unit also receives the signal of said water inlet position inductor assembly.
As preferred implementation, between said neutralizing agent transfer lime and the said water ballast water shoot junctor is set.
As preferred implementation, said junctor comprises limit stream, liquid flow measurement appearance and valve.
With the method for ship ballast water, comprise following steps in the above-mentioned ship ballast water neutralizing device of the bright employing that provides of this law:
Toxic substance detects step, detects remaining toxic substance concentration in the ship ballast water through draining position inductor assembly;
Neutralizing agent drops into step, detects detected toxic substance concentration in the step according to said toxic substance, starts the neutralizing agent transferpump and drops into neutralizing agent;
Toxic substance is reaffirmed step, detects remaining toxic substance concentration in the ship ballast water once more through draining position inductor assembly; And
Neutralizing agent drops into set-up procedure, reaffirms that according to said toxic substance detected toxic substance concentration is controlled the neutralizing agent transferpump in the step, with the input amount of adjustment neutralizing agent.
With the method for ship ballast water, also can comprise following steps in the above-mentioned ship ballast water neutralizing device of the bright employing that provides of this law:
Toxic substance detects step, detects remaining toxic substance concentration in the ship ballast water through water inlet position inductor assembly;
Neutralizing agent drops into step, detects detected toxic substance concentration in the step according to said toxic substance, starts the neutralizing agent transferpump and drops into neutralizing agent;
Toxic substance is reaffirmed step, detects remaining toxic substance concentration in the ship ballast water once more through draining position inductor assembly; And
Neutralizing agent drops into set-up procedure, reaffirms that according to said toxic substance detected toxic substance concentration is controlled the neutralizing agent transferpump in the step, with the input amount of adjustment neutralizing agent.
Beneficial effect of the present invention is, when adopting the water ballast neutralization method among the present invention, artificially in the water ballast toxic substance; Do not wait for the remaining toxic substance of natural decomposition ship ballast water; Can directly discharge, thereby guarantee voyage time, especially can tackle the situation of in emergency circumstances discharging ship ballast water; Prevent the destruction of toxic substance in advance, can satisfy the prescribed value of IMO all the time ecology.
[description of drawings]
Fig. 1 is the synoptic diagram of ship ballast water neutralizing device among the present invention.
Fig. 2 is the schema of ship ballast water neutralization method among the present invention.
The part label that relates in the accompanying drawing is following:
11. water ballast storage tank
12. water ballast water shoot
13. ballasting water pump
21. neutralizing agent storage tank
22. valve
23. neutralizing agent transferpump
24. neutralizing agent transfer lime
25. junctor
26. draining position inductor assembly
27. water inlet position inductor assembly
28. unit
[embodiment]
Following with reference to accompanying drawing, will specify ship ballast water neutralizing device and neutralization method among the present invention.
Fig. 1 is the synoptic diagram of ship ballast water neutralizing device among the present invention.
As shown in Figure 1, ship water ballast neutralizing device of the present invention is formed with water ballast storage tank 11, water ballast water shoot 12, draining position inductor assembly 26, water inlet position inductor assembly 27, neutralizing agent transfer lime 24, neutralizing agent storage tank 21, neutralizing agent transferpump 23, ballasting water pump 13 and unit 28.
Water ballast storage tank 11 carries out the ship ballast water space that ozone sterilization is handled for storage; At bottom of ship; During boats and ships loadings (perhaps the passenger goes on board); Proportionally the respective row oceangoing ship water ballast of undocking during unloading (perhaps the passenger goes ashore), carries out reindoctrinating ship ballast water after the germicidal treatment to seawater according to relative proportion.
Water ballast water shoot 12 is for being stored at the ship ballast water discharge tube of water ballast storage tank 11, and an end is connected water ballast storage tank 11 discharging positions, and the other end is fixed on hull, and water port is towards the sea.
Draining position inductor assembly 26 is arranged on water ballast water shoot 12 1 ends, and water inlet position inductor assembly 27 is arranged on water ballast water shoot 12 the other ends, and they adopt general toxic substance read means, read the remaining toxic substance concentration of ship ballast water.
The toxic substance inductor block can adopt the automatic analytical engine of TRO.
During neutralizing agent storage tank 21 is used for storing with ship ballast water in the neutralizing agent of remaining toxic substance, neutralizing agent of the present invention can be Sulfothiorine (Na
2S
2O
3), Lime (CaO or Ca (OH)
2), Sodium Carbonate, Sodium hydroxide, Ammonia gas etc.
In addition; Neutralizing agent transfer lime 24 is the pipeline that connects neutralizing agent storage tank 21 and water ballast water shoot 12 on the neutralizing agent water ballast water shoot 12; The one of which end is connected on the neutralizing agent storage tank 21, and the other end is connected on the water ballast water shoot between draining position inductor assembly 26 and the water inlet position inductor assembly 27.
In order effectively to carry neutralizing agent, preferably connect neutralizing agent transfer lime 24 and water ballast water shoot 12 with junctor 25, junctor can comprise limit stream, liquid flow measurement appearance and valve etc.
On neutralizing agent transfer lime 24 1 ends neutralizing agent transferpump 23 is set, through neutralizing agent transfer lime 24 input neutralizing agents, exerts pressure for neutralizing agent storage tank 21, neutralizing agent transferpump 23 is the pump of constant delivery type through wave adjustment neutralizing agent flow.
Ballasting water pump 13 is for outwards discharging the conventional pump that is stored at water ballast storage tank 11.
Unit 28 detects remaining toxic substance concentration in the ship ballast water when the discharging ship ballast water; Be an amount of neutralizing agent that drops into; Adopt the transferpump 23 of control neutralizing agent,, start neutralizing agent transferpump 23 according to draining position inductor assembly 26 and water inlet position inductor assembly 27 input signals; So that mix between ship ballast water and the neutralizing agent, the remaining toxic substance of staying ship ballast water will be neutralized.
The reaction formula of neutralization reaction process is following.
S
2O
3 2-+4Cl
2+5H
2O→2SO
4 2-+8Cl
-+10H
+
S
2O
3 2-+4Br
2+5H
2O→2SO
4 2-+8Br
-+10H
+
In addition; In input and in the dosage control; Neutralizing agent according to unit 28 inner programmings in advance drops into data sheet; Neutralizing agent transferpump 23 is derived draining position inductor assembly 26 and water inlet position inductor assembly 27 input information signals, so as in the adjustment neutralizing agent storage tank 21 discharging in and dosage.
Be arranged on the valve 22 about the neutralizing agent transferpump among the figure, with 28 controls of neutralizing agent transferpump Be Controlled device.
With reference to Fig. 2, specify the neutralization method of ship ballast water neutralizing device among the present invention.
Fig. 2 is ship ballast water neutralization method schema among the present invention.
The ship ballast water neutralizing device is worked under unit 28 effects voluntarily, and following algorithm main body is a unit 28, and following steps are carried out the ozone sterilization processing in water ballast storage tank 11, when discharging the ship ballast water of storage, starts ballasting water pump 13.
At first; Toxic substance detects step S1 and is discharged the remaining toxic substance concentration of ship ballast water by detecting through water inlet position inductor assembly 27; It is after the S1 step that neutralizing agent drops into step S3, according to the toxic substance concentration that is detected, starts neutralizing agent transferpump 23.
In addition; After toxic substance reaffirms that step S5 detects the remaining toxic substance concentration of ship ballast water once more through draining position inductor assembly 26; Drop among the set-up procedure S7 at neutralizing agent, according to the toxic substance concentration that is detected, the input amount of neutralizing agent transferpump 23 adjustment neutralizing agents.
Therefore, in the present invention, when adopting ship ballast water neutralizing device and neutralization method; Need not the remaining toxic substance natural decomposition of ship ballast water by the time; Can discharge, can guarantee voyage time, especially can deal with the situation of in case of emergency discharging ship ballast water; The advance preventing toxic substance can satisfy the IMO prescribed value all the time to the destruction of ecology.
In addition; In the detailed description of the present invention; Be to describe according to the state that is provided with water position inductor assembly into 27 and draining position inductor assembly 26; But in other embodiments, draining position inductor block 26 can only be set, can be provided with or remove junctor 25, valve 22 and ballasting water pump 13.
The present invention is described by above-mentioned related embodiment, yet the foregoing description is merely the example of embodiment of the present invention.Must be pointed out that disclosed embodiment does not limit scope of the present invention.On the contrary, being contained in the spirit of claims and the modification and impartial setting of scope includes in scope of the present invention.