CN110182911A - Ballast water for ship processing control apparatus, method and ship ballast water treatment system - Google Patents
Ballast water for ship processing control apparatus, method and ship ballast water treatment system Download PDFInfo
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- CN110182911A CN110182911A CN201910528400.2A CN201910528400A CN110182911A CN 110182911 A CN110182911 A CN 110182911A CN 201910528400 A CN201910528400 A CN 201910528400A CN 110182911 A CN110182911 A CN 110182911A
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- ballast water
- electrolysis cells
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/08—Seawater, e.g. for desalination
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- Hydrology & Water Resources (AREA)
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- Environmental & Geological Engineering (AREA)
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- General Chemical & Material Sciences (AREA)
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Abstract
A kind of ballast water for ship processing control apparatus of the application, including temperature detecting unit, salinity measurement unit, flow detection unit, effective chlorine analytical unit and control unit, the electrolysis cells that control unit is used to control ship ballast water treatment system are started to work with specified Faradaic current, it is also used to according to temperature detecting unit, salinity measurement unit, flow detection unit, the detection data of effective chlorine analytical unit and specified Faradaic current, the current efficiency of electrolysis cells-temperature salinity relation data calculates the current efficiency correction factor of electrolysis cells, and according to specified effective chlorine density, current efficiency correction factor, current efficiency-temperature salinity relation data and temperature detecting unit, salinity measurement unit, the Faradaic current of the detection data control electrolysis cells of flow detection unit.The present invention can accurately control effective chlorine dosage.
Description
Technical field
The present invention relates to water-treatment technology field, especially with regard to a kind of ballast water for ship processing control apparatus, method and
Ship ballast water treatment system.
Background technique
It is required according to Convention of the International Maritme Organization, ship must be handled ballast water, reach " D-2 " mark as defined in it
It can just be discharged after standard.Electrolysis method is one of ballast for cruising water treatment technology of current mainstream, its working principle is that ship is adding
When filling ballast water, all or part of seawater generates certain density effective solutions of chlorine by electrolysis by electrolysis cells, seawater.Effectively
Solutions of chlorine has very strong oxidisability, and it is biological can to kill planktonic organism, larva, spore and pathogen in seawater etc..It is true
Ballast water quality reaches requirements of convention after guarantor's processing, and effective chlorine adding consistency must reach certain numerical value, usually on the left side 5-13ppm
The right side, but when adding consistency is excessively high, will increase equipment energy consumption, and cabin is accelerated to corrode.Therefore, it accurately controls effective in ballast water
Chlorine adding consistency becomes one of the key technology of electrolysis method Ballast Management system.
Spot ship ballast water treatment system effective chlorine adding consistency control flow is as follows: in real time from ballast water main line
Ballast water water sample is acquired, effective chlorine analyzers are delivered to by sampling line, effective chlorine analysis-e/or determining effective chlorine density simultaneously passes
Control unit is transported to, control unit adjusts Faradaic current according to effective chlorine density is measured, so that controlling has in ballast water main line
Cl concn is imitated in set interval.
Effective chlorine analyzers are broadly divided into spectrophotometry and electrode method, due to spectrophotometry accuracy, reliability phase
To higher, ballast water treatment system is all made of spectrophotometry at present.Its principle is to take a certain amount of water sample, injects and has to it
The indicator that effect chlorine is reacted and developed the color, the absorbance of the indicator based on the colour developing measure having in the ballast water
Imitate cl concn.This method testing time is longer, and response speed is slow, and the effective chlorine density after the completion of measurement in water may have occurred and that
Significant changes can not accurately adjust the effective chlorine adding consistency in ballast line.
Summary of the invention
The purpose of the present invention is to provide a kind of ballast water for ship processing control apparatus and method, can accurately control effectively
Cl concn.
The present invention provides a kind of ballast water for ship processing control apparatus, comprising:
Temperature detecting unit, for detecting the temperature for entering the ballast water of electrolysis cells of ship ballast water treatment system；
Salinity measurement unit, for detecting the salinity into the ballast water of the electrolysis cells；
Flow detection unit, the flow of the ballast water in main line for detecting the ship ballast water treatment system；
Effective chlorine analytical unit, for detecting the effective chlorine density in the main line；
Control unit is started to work for controlling the electrolysis cells with specified Faradaic current；It is also used to according to the temperature
Spend detection unit, the salinity measurement unit, the flow detection unit, the detection data of the effective chlorine analytical unit and institute
State specified Faradaic current, current efficiency-temperature salinity relation data of the electrolysis cells calculates the electric currents of the electrolysis cells
The efficiency correction factor, and according to specified effective chlorine density, the current efficiency correction factor, the current efficiency-temperature salinity
The detection data control institute of relation data and the temperature detecting unit, the salinity measurement unit, the flow detection unit
State the Faradaic current of electrolysis cells.
Wherein, the pipeline where the electrolysis cells is arranged in the temperature detecting unit and the salinity measurement unit
In, the temperature detecting unit and the salinity measurement unit are located at before the entrance of the electrolysis cells.
Wherein, the effective chlorine analytical unit is connect by pipeline of fetching water with the main line, and the water intaking pipeline enters
Mouth is located at the rear of the electrolysis cells, and the flow detection unit is arranged in the main line.
The application also provides a kind of ballast water for ship process control method, comprising:
The electrolysis cells of control ship ballast water treatment system are started to work with specified Faradaic current；
According to the temperature for the ballast water for entering the electrolysis cells, the salinity of ballast water into the electrolysis cells, ship
The flow of ballast water in the main line of ship ballast water processing system, the detected value of effective chlorine density in the main line and institute
State specified Faradaic current, current efficiency-temperature salinity relation data of the electrolysis cells calculates the electric currents of the electrolysis cells
The efficiency correction factor；
Temperature, the salinity of ballast water into the electrolysis cells, master of the ballast water of the electrolysis cells are obtained in real time
The detected value of the flow of ballast water in pipeline；
According to the detected value of acquisition, specified effective chlorine density, the current efficiency correction factor, the current efficiency-temperature
Degree-salinity relation data controls the Faradaic current of the electrolysis cells.
Wherein, the electrolysis cells of the control ship ballast water treatment system are started to work with specified Faradaic current, comprising:
Specified chlorine yield is calculated according to specified effective chlorine density and metered flow, and, according to rated temperature, specified salt
It spends, the current efficiency of the electrolysis cells of the ship ballast water treatment system-temperature salinity relation data obtains the electrolysis list
The rated current efficiency of member；
The specified Faradaic current of the electrolysis cells is calculated according to the rated current efficiency and the specified chlorine yield；
Start the electrolysis cells according to the specified Faradaic current.
Wherein, it is described according to the temperature for the ballast water for entering the electrolysis cells, into the ballast water of the electrolysis cells
Salinity, ship ballast water treatment system main line in the flow of ballast water, effective chlorine density in the main line
Current efficiency-temperature salinity relation data of detected value and the specified Faradaic current, the electrolysis cells calculates the electrolysis
The step of current efficiency correction factor of unit, comprising:
According to enter the electrolysis cells ballast water temperature, into the electrolysis cells ballast water salinity inspection
The current efficiency of measured value and the electrolysis cells-temperature salinity relation data obtains the first theoretical current efficiency, and, according to
The flow of ballast water in main line, the detected value of effective chlorine density in main line and the specified Faradaic current calculate practical
Current efficiency；
The current efficiency of electrolysis cells described in the first theoretical current efficiency and the actual current efficiency calculation corrects
The factor.
Wherein, described according to the detected value of acquisition, specified effective chlorine density, the current efficiency correction factor, the electricity
The step of stream efficiency-temperature salinity relation data controls the Faradaic current of the electrolysis cells, comprising:
According to enter the electrolysis cells ballast water temperature, into the electrolysis cells ballast water salinity inspection
Measured value and the current efficiency-temperature salinity relation data obtain the second theoretical current efficiency；
According to the current efficiency correction factor, the second theoretical current efficiency, specified effective chlorine density and main line
In the detected value of flow of ballast water calculate practical Faradaic current；
The electrolysis cells work is controlled according to the practical Faradaic current, return is described to obtain the electrolysis cells in real time
Ballast water temperature, into the ballast water in the salinity of ballast water of the electrolysis cells, main line flow detected value
The step of.
The application also provides a kind of ship ballast water treatment system, including electrolysis cells and ballast water for ship as described above
Processing control apparatus.
Wherein, the ship ballast water treatment system includes electrolysis pipeline and main line, the entrance of the electrolysis pipeline with
Outlet is connected to the main line respectively, the temperature detection list of the electrolysis cells, the ballast water for ship processing control apparatus
Member and salinity measurement unit are arranged in the electrolysis pipeline, and the temperature detecting unit and the salinity measurement unit are located at institute
Before the entrance for stating electrolysis cells, the effective chlorine analytical unit of the ballast water for ship processing control apparatus by water intaking pipeline with
The main line connection.
Wherein, the ship ballast water treatment system includes main line, the electrolysis cells, the ballast for cruising water process
The temperature detecting unit of control device and the salinity measurement unit are arranged in the main line, the temperature detecting unit and
The salinity measurement unit is located at before the entrance of the electrolysis cells, the effective chlorine of the ballast water for ship processing control apparatus
Analytical unit is connect by pipeline of fetching water with the main line.
Ballast water for ship processing control apparatus, method and ship ballast water treatment system of the invention, first control electrolysis are single
Member is started to work with specified Faradaic current, then, according to the temperature for the ballast water for entering electrolysis cells, into the pressure of electrolysis cells
Carry the salinity of water, the flow of ballast water in main line, the detected value of effective chlorine density in main line and specified Faradaic current,
The current efficiency of electrolysis cells-temperature salinity relation data calculates the current efficiency correction factor of electrolysis cells, later, in real time
Obtain the temperature of the ballast water of electrolysis cells, into the flow of the ballast water in the salinity of ballast water of electrolysis cells, main line
Detected value, and according to the detected value of acquisition, specified effective chlorine density, current efficiency correction factor, current efficiency-temperature-salt
Spend the Faradaic current of relation data control electrolysis cells.The present invention is closed by establishing current efficiency-temperature salinity of electrolysis cells
Coefficient evidence can replace the monitoring of effective chlorine density with temperature, salinity and the flow for being easier real-time measurement, realize Faradaic current
Real-time adjustment, and then effectively control effective chlorine dosage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the ballast water for ship processing control apparatus in first embodiment of the invention.
Fig. 2 is current efficiency-temperature salinity relation data schematic diagram of the electrolysis cells in the embodiment of the present invention.
Fig. 3 is the flow diagram of the ballast water for ship process control method in second embodiment of the invention.
Fig. 4 is the structural schematic diagram of the ship ballast water treatment system in third embodiment of the invention.
Fig. 5 is the structural schematic diagram of the ship ballast water treatment system in fourth embodiment of the invention.
Specific embodiment
Presently filed embodiment is illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book understands other advantages and effect of the application easily.
In described below, with reference to attached drawing, attached drawing describes several embodiments of the application.It should be appreciated that also can be used
Other embodiments, and can be carried out without departing substantially from spirit and scope mechanical composition, structure, electrically with
And operational change.Following detailed description should not be considered limiting, and the range of embodiments herein
Only limited by the claims for the patent announced.Term used herein is merely to describe specific embodiment, and be not
It is intended to limit the application.
Although term first, second etc. are used to describe various elements herein in some instances, these elements
It should not be limited by these terms.These terms are only used to distinguish an element with another element.
Furthermore as used in herein, singular " one ", "one" and "the" are intended to also include plural number shape
Formula, unless there is opposite instruction in context.It will be further understood that term "comprising", " comprising " show that there are the spies
Sign, step, operation, element, component, project, type, and/or group, but it is not excluded for one or more other features, step, behaviour
Presence, appearance or the addition of work, element, component, project, type, and/or group.Term "or" used herein and "and/or" quilt
It is construed to inclusive, or means any one or any combination.Therefore, " A, B or C " or " A, B and/or C " mean " with
Descend any one: A；B；C；A and B；A and C；B and C；A, B and C ".Only when element, function, step or the combination of operation are in certain sides
When inherently mutually exclusive under formula, it just will appear the exception of this definition.
First embodiment
Fig. 1 is the structural schematic diagram of the ballast water for ship processing control apparatus in first embodiment of the invention.Such as Fig. 1 institute
Show, the ballast water for ship processing control apparatus of the present embodiment includes temperature detecting unit 12, salinity measurement unit 13, flow detection
Unit 15, effective chlorine analytical unit 16 and control unit 11.
The signal output end of temperature detecting unit 12 is connected with the input terminal of control unit 11, the letter of temperature detecting unit 12
Number output end is connected with the input terminal of control unit 11, the output end of effective chlorine analytical unit 16 and the input terminal of control unit 11
It is connected, flow detection unit 15 is connected with the input terminal of control unit 11.In the present embodiment, control unit 11 includes operation
Control module and electrolysis power control module, the input terminal and temperature detecting unit 12, salinity measurement unit of operation control module
13, flow detection unit 15, effective chlorine analytical unit 16 connect, the output end and electrolysis power control module of operation control module
Input terminal connection, the electrolysis power of the output end of electrolysis power control module and electrolysis cells connects.
Effective solutions of chlorine in ballast water treatment system main line is electrolysed ballast water by electrolysis cells and generates, and effective chlorine is molten
Liquid has very strong oxidisability, and it is biological can to kill planktonic organism, larva, spore and pathogen in seawater etc..Temperature detection
Unit 12 is used to detect the temperature of the ballast water into the electrolysis cells of ballast water treatment system, and salinity measurement unit 13 is for examining
The salinity for entering the ballast water of electrolysis cells is surveyed, flow detection unit 15 is used to detect in the main line of ballast water treatment system
The flow of ballast water, effective chlorine analytical unit 16 are used to detect the effective chlorine density in main line.
Temperature detecting unit 12 and salinity measurement unit 13 are arranged in the pipeline where electrolysis cells, and temperature detection list
Member 12 and salinity measurement unit 13 are located at before the entrance of electrolysis cells, so as to be accurately detected the pressure for entering electrolysis cells
Carry the temperature and salinity of water.Effective chlorine analytical unit 16 is connect with main line by pipeline of fetching water to extract part from main line
Ballast water carry out the detection of effective chlorine density, the entrance for pipeline of fetching water is located at the rear of electrolysis cells, flow detection unit 15
It is arranged in main line.
Effective chlorine density in main line depends on the effective chlorine yield of electrolysis cells and the stream of the ballast water in main line
Amount, the effective chlorine yield of electrolysis cells depend on the Faradaic current size and current efficiency of electrolysis cells again, therefore, practical to realize
When, it can be by the flow (S) of the ballast water in effective chlorine density (L), main line, the Faradaic current (I) of electrolysis cells and electrolysis
Relationship between the current efficiency (η) of unit is expressed as I × η × K=L × S (calling " formula one " in the following text), wherein K is single with electrolysis
The relevant fixed coefficient of electrolytic cell quantity of member, unit are g/ (Ah).
Wherein, the current efficiency of electrolysis cells and temperature, the salinity of ballast water have significant correlation, while also by seawater
The influence of the other factors such as water quality, pole plate working time, but ballast for cruising water process is only loading or is arranging load Shi Jinhang, primary
In the time that load or row carry, significant change will not occur for the factor that seawater quality, pole plate working time etc. influence current efficiency,
Therefore, the variation of the current efficiency of electrolysis cells is mainly influenced by temperature and salinity.In this way, by pre-establishing electric current effect
Rate-temperature salinity relation data can be searched by the temperature and salinity of the ballast water into electrolysis cells of real-time measurement
Obtain the theoretical current efficiency of electrolysis cells.
Current efficiency-temperature salinity relation data relational graph in detection referring to FIG. 2, obtain into electrolysis cells
After the temperature and salinity of ballast water, unique current efficiency can be obtained as current theoretical current by searching for data
Efficiency.In this regard, in ship ballast water treatment system before use, using natural clean determination of seawater electrolysis cells in different temperatures
(0-40 DEG C), the current efficiency under different salinity (3-35PSU), to establish current efficiency and temperature, salinity as shown in Figure 2
Relational graph, and be pre-stored in control unit 11.It is appreciated that current efficiency-temperature salinity of identical electrolysis cells
Relation data is identical.
Control unit 11 is started to work with specified Faradaic current for controlling electrolysis cells, calculates specified Faradaic current
Process may is that
Specified chlorine yield is calculated according to specified effective chlorine density and metered flow, and, according to rated temperature, specified salt
Current efficiency-temperature salinity relation data acquisition electrolysis cells rated current efficiency of degree, electrolysis cells；
The specified Faradaic current of electrolysis cells is calculated according to rated current efficiency and specified chlorine yield.
Wherein, specified effective chlorine density, metered flow are the preset running parameter of ballast water treatment system, specified temperature
Degree and specified salinity are preset environment value, such as respectively 20 DEG C, 30PSU, obtain respectively rated current efficiency with
After specified chlorine yield, according to formula one, the specified Faradaic current of electrolysis cells can be calculated.
Control unit 11 is also used to after electrolysis cells are started to work, according to temperature detecting unit 12, salinity measurement unit
13, the electric current effect of flow detection unit 15, the detection data of effective chlorine analytical unit 16 and specified Faradaic current, electrolysis cells
Rate-temperature salinity relation data calculates the current efficiency correction factor of electrolysis cells.The process of the calculating current efficiency correction factor
It may is that
According to temperature detecting unit 12, the detection data of salinity measurement unit 13, current efficiency-temperature-of electrolysis cells
Salinity relation data obtains the first theoretical current efficiency, and, according to the inspection of flow detection unit 15, effective chlorine analytical unit 16
Measured data and specified Faradaic current calculate actual current efficiency；
According to the current efficiency correction factor of the first theoretical current efficiency and actual current efficiency calculation electrolysis cells.
Wherein, after ship ballast water treatment system starts a period of time, start the current efficiency school for calculating electrolysis cells
Positive divisor, the inspection of the temperature, salinity measurement unit 13 of the ballast water into electrolysis cells measured according to temperature detecting unit 12
The salinity for the ballast water into electrolysis cells that measured data measures and current efficiency-temperature salinity relation data of electrolysis cells,
The first theoretical current efficiency under current working, the pressure in main line measured according to flow detection unit 15 can be searched to obtain
Effective chlorine density and the electrolysis cells for carrying the ballast water in the main line that measures of flow, effective chlorine analytical unit 16 of water are current
The actual current efficiency under current working can be calculated in Faradaic current namely specified Faradaic current, in the present embodiment,
Ratio of the current efficiency correction factor between actual current efficiency and the first theoretical current efficiency.
So far, according to the detection data of effective chlorine analytical unit 16 and specified Faradaic current to the electrolysis list under actual condition
The theoretical electrolytic efficiency of member completes correction.Due to having pre-established the theoretical electrolytic efficiency and temperature, salinity of electrolysis cells
Relation data, and the correction factor that the theoretical electrolytic efficiency of electrolysis cells has been calculated is not necessarily in subsequent control process
It continues to use effective chlorine analytical unit 16 and detects effective chlorine density, and temperature, salinity and the stream for being easier real-time measurement can be used
Amount replaces the monitoring of effective chlorine density, by the real-time adjustment to Faradaic current, effectively controls effective chlorine dosage.
Control unit 11 is also used to after current efficiency correction factor is calculated, real-time acquisition temperature detecting unit 12,
The detection data of salinity measurement unit 13, flow detection unit 15, and according to specified effective chlorine density, current efficiency correction because
Son, current efficiency-temperature salinity relation data and temperature detecting unit 12, salinity measurement unit 13, flow detection unit 15
The Faradaic current of detection data control electrolysis cells.Detailed process may is that
According to temperature detecting unit 12, the detection data of salinity measurement unit 13 and current efficiency-temperature salinity relationship number
According to the second theoretical current efficiency of acquisition；
According to current efficiency correction factor, the second theoretical current efficiency, specified effective chlorine density and flow detection unit 15
Detection data calculate practical Faradaic current；
Electrolysis cells work is controlled according to practical Faradaic current.
Wherein, the temperature of the ballast water into electrolysis cells measured according to temperature detecting unit 12, salinity measurement unit
The salinity and current efficiency-temperature salinity relation data of 13 ballast waters into electrolysis cells measured, can search and be worked as
The second theoretical current efficiency under preceding operating condition is corrected to obtain according to current efficiency correction factor to the second theoretical current efficiency
Actual current efficiency under current working.Then, be based on formula one, according under current working actual current efficiency, specified have
The flow for the ballast water in main line that effect cl concn and flow detection unit 15 measure, can be calculated the reality under current working
Border Faradaic current, specified effective chlorine density are preset effective chlorine density controlling value.Finally, controlling electricity according to practical Faradaic current
Cell operation is solved, after the Faradaic current variation of electrolysis cells, the chlorine yield of electrolysis cells changes, so that main line
In effective chlorine density change, since the Faradaic current of electrolysis cells is calculated according to specified effective chlorine density, make to lead
Effective chlorine density in pipeline is maintained always in the interval range of setting, drops the fluctuation of effective chlorine density in ballast water obviously
It is low.
Ballast water for ship processing control apparatus of the invention is first controlled electrolysis cells and is started to work with specified Faradaic current,
Then, according to the temperature for the ballast water for entering electrolysis cells, into the ballast in the salinity of ballast water of electrolysis cells, main line
Current efficiency-temperature-of the flow of water, the detected value of effective chlorine density in main line and specified Faradaic current, electrolysis cells
Salinity relation data calculates the current efficiency correction factor of electrolysis cells, later, obtains the temperature of the ballast water of electrolysis cells in real time
Degree, into the ballast water in the salinity of ballast water of electrolysis cells, main line flow detected value, and according to the detection of acquisition
Value, specified effective chlorine density, current efficiency correction factor, current efficiency-temperature salinity relation data control electrolysis cells electricity
Solve electric current.The present invention, can be with being easier to survey in real time by establishing current efficiency-temperature salinity relation datas of electrolysis cells
Temperature, salinity and the flow of amount replace the monitoring of effective chlorine density, realize the real-time adjustment of Faradaic current, and then effectively controlled
Imitate chlorine dosage.
Second embodiment
Fig. 3 is the flow diagram of the ballast water for ship process control method in second embodiment of the invention.Such as Fig. 3 institute
Show, the ballast water for ship process control method of the present embodiment, comprising:
Step 310, the electrolysis cells of ship ballast water treatment system are controlled to start to work with specified Faradaic current；
Step 320, according to the temperature for the ballast water for entering electrolysis cells, the salinity of ballast water into electrolysis cells, ship
The detected value and specified electricity of the flow of ballast water in the main line of ship ballast water processing system, effective chlorine density in main line
Solve current efficiency-temperature salinity relation data calculating electrolysis cells current efficiency correction factor of electric current, electrolysis cells；
Step 330, temperature, the salinity of ballast water into electrolysis cells, master of the ballast water of electrolysis cells are obtained in real time
The detected value of the flow of ballast water in pipeline；
Step 340, according to the detected value of acquisition, specified effective chlorine density, current efficiency correction factor, current efficiency-temperature
Degree-salinity relation data control electrolysis cells Faradaic current.
Wherein, in step 310, the electrolysis cells of ship ballast water treatment system is controlled with specified Faradaic current and start work
Make, comprising:
Specified chlorine yield is calculated according to specified effective chlorine density and metered flow, and, according to rated temperature, specified salt
It spends, the current efficiency of the electrolysis cells of ship ballast water treatment system-temperature salinity relation data obtains the specified of electrolysis cells
Current efficiency；
The specified Faradaic current of electrolysis cells is calculated according to rated current efficiency and specified chlorine yield；
Start electrolysis cells according to specified Faradaic current.
Wherein, in step 320, according to the temperature for the ballast water for entering electrolysis cells, into the ballast water of electrolysis cells
Salinity, ship ballast water treatment system main line in the flow of ballast water, effective chlorine density in main line detected value
And the current efficiency of specified Faradaic current, electrolysis cells-temperature salinity relation data calculates the current efficiency correction of electrolysis cells
The factor, comprising:
According to enter electrolysis cells ballast water temperature, into electrolysis cells ballast water salinity detected value and electricity
Current efficiency-temperature salinity the relation data for solving unit obtains the first theoretical current efficiency, and, according to the pressure in main line
It carries the flow of water, the detected value of effective chlorine density in main line and specified Faradaic current and calculates actual current efficiency；
The current efficiency correction factor of first theoretical current efficiency and actual current efficiency calculation electrolysis cells.
Wherein, in step 340, according to the detected value of acquisition, specified effective chlorine density, current efficiency correction factor, electric current
Efficiency-temperature salinity relation data control electrolysis cells Faradaic current, comprising:
According to enter electrolysis cells ballast water temperature, into electrolysis cells ballast water salinity detected value and electricity
It flows efficiency-temperature salinity relation data and obtains the second theoretical current efficiency；
According to the ballast in current efficiency correction factor, the second theoretical current efficiency, specified effective chlorine density and main line
The detected value of the flow of water calculates practical Faradaic current；
Electrolysis cells work, return step 330 are controlled according to practical Faradaic current.
The realization of above-mentioned steps and calculating process please refer to the description of embodiment illustrated in fig. 1, and details are not described herein.
In actual implementation, further comprising the steps of before step 330:
According to the first theoretical current efficiency, current efficiency correction factor, specified effective chlorine density and effective chlorine analytical unit
The flow of the ballast water in main line when sampling calculates the first Faradaic current；
Electrolysis cells work is controlled according to the first Faradaic current.
It wherein, is the specified Faradaic current work to calculate for the first time before electrolysis cells are worked with the first Faradaic current
Make, before step 330, first carries out the adjusting of once electrolytic electric current.Electrolysis cells work is being controlled according to the first Faradaic current
After work, the temperature of the ballast water of electrolysis cells is obtained in real time, into the ballast in the salinity of ballast water of electrolysis cells, main line
The detected value of the flow of water realizes the real-time adjustment to the Faradaic current of electrolysis cells, and then realizes the real-time of effective chlorine density
Adjustment.
Ballast water for ship process control method of the invention is first controlled electrolysis cells and is started to work with specified Faradaic current,
Then, according to the temperature for the ballast water for entering electrolysis cells, into the ballast in the salinity of ballast water of electrolysis cells, main line
Current efficiency-temperature-of the flow of water, the detected value of effective chlorine density in main line and specified Faradaic current, electrolysis cells
Salinity relation data calculates the current efficiency correction factor of electrolysis cells, later, obtains the temperature of the ballast water of electrolysis cells in real time
Degree, into the ballast water in the salinity of ballast water of electrolysis cells, main line flow detected value, and according to the detection of acquisition
Value, specified effective chlorine density, current efficiency correction factor, current efficiency-temperature salinity relation data control electrolysis cells electricity
Solve electric current.The present invention, can be with being easier to survey in real time by establishing current efficiency-temperature salinity relation datas of electrolysis cells
Temperature, salinity and the flow of amount replace the monitoring of effective chlorine density, realize the real-time adjustment of Faradaic current, and then effectively controlled
Imitate chlorine dosage.
3rd embodiment
Fig. 4 is the structural schematic diagram of the ship ballast water treatment system in third embodiment of the invention.As shown in figure 4, this
The ship ballast water treatment system 50 of embodiment includes electrolysis cells 51 and ballast water for ship processing control apparatus, ballast water for ship
Processing control apparatus includes temperature detecting unit 12, salinity measurement unit 13, flow detection unit 15, effective chlorine analytical unit 16
And control unit 11.
The signal output end of temperature detecting unit 12 is connected with the input terminal of control unit 11, the letter of temperature detecting unit 12
Number output end is connected with the input terminal of control unit 11, the output end of effective chlorine analytical unit 16 and the input terminal of control unit 11
It is connected, flow detection unit 15 is connected with the input terminal of control unit 11.In the present embodiment, control unit 11 includes operation
Control module and electrolysis power control module, the input terminal and temperature detecting unit 12, salinity measurement unit of operation control module
13, flow detection unit 15, effective chlorine analytical unit 16 connect, the output end and electrolysis power control module of operation control module
Input terminal connection, the output end of electrolysis power control module connect with the electrolysis power of electrolysis cells 51.
In the present embodiment, ship ballast water treatment system 50 includes main line 52 and is electrolysed pipeline 53, main line 52
Entrance is equipped with filter 55, and the entrance for being electrolysed pipeline 53 is connected to main line 52 respectively with outlet, electrolysis cells 51, temperature detection
In electrolysis pipeline 53, temperature detecting unit 12 and salinity measurement unit 13 are located at electricity for unit 12 and the setting of salinity measurement unit 13
Before the entrance for solving unit 51.Effective chlorine analytical unit 16 is connect by pipeline 56 of fetching water with main line 52, water intaking pipeline 56
Entrance is located at the rear of electrolysis cells 51.The setting of flow detection unit 15 is located at water intaking in main line 52, flow detection unit 15
Between the entrance and electrolysis cells 51 of pipeline 56.
Effective solutions of chlorine in main line 52 is electrolysed ballast water by electrolysis cells 51 and generates, and effective solutions of chlorine has very strong
Oxidisability, it is biological that planktonic organism, larva, spore and pathogen in seawater etc. can be killed.Temperature detecting unit 12 is used for
Detection enters the temperature of the ballast water of electrolysis cells 51, and salinity measurement unit 13 is used to detect the ballast water into electrolysis cells 51
Salinity, flow detection unit 15 is used to detect the flow of ballast water in main line 52, and effective chlorine analytical unit 16 is for examining
Survey the effective chlorine density in main line 52.
Control process of the ship ballast water treatment system 50 of the present embodiment described further below under actual condition.
When ship ballast water treatment system 50 starts to work preceding, according to the specified effective chlorine density of the main line 52 of setting
7.5ppm, the metered flow 1000m of main line 523The specified chlorine yield 7.5kg/h of electrolysis cells 51 is calculated in/h, inquiry
Current efficiency shown in Fig. 2 and ocean temperature, the relational graph of salinity obtain 20 DEG C, the corresponding electrolysis cells 51 of the seawater of 30PSU
Current efficiency be 87.1%, according to formula one, the specified Faradaic current that electrolysis cells 51 are calculated is 406.8A.
Electrolysis cells 51 are controlled first to start by specified Faradaic current 406.8A, after system run all right, such as one section of operation
After time, a certain amount of water sample is taken by the water intaking pipeline 56 of effective chlorine analytical unit 16, is delivered to effective chlorine analytical unit 16,
Meanwhile the temperature of the inflow water of 12 real-time measurement electrolysis cells 51 of temperature detecting unit is 18 DEG C, salinity measurement unit 13 is real-time
The salinity for measuring the inflow water of electrolysis cells 51 is 25PSU, and the flow of 15 real-time measurement main line 52 of flow detection unit is
1200m3/ h is transmitted to control unit 11.Control unit 11 is measured according to temperature detecting unit 12 and salinity measurement unit 13
Temperature and salinity inquire the current efficiency of built-in electrolysis cells 51 and flow into the relational graph of coolant-temperature gage, salinity, obtain operation work
The theoretical current efficiency of electrolysis cells 51 is 86.1% under condition.At this point, the effective chlorine density that effective chlorine analytical unit 16 measures is
5.65ppm is simultaneously transmitted to control unit 11, and control unit 11 combines the flow of specified Faradaic current 406.8A, main line 52
1200m3/ h, the actual current efficiency that electrolysis cells 51 are calculated is 78.7%.
Theoretical current with the actual current efficiency 78.7% of electrolysis cells 51 divided by electrolysis cells 51 under operating condition
Efficiency 86.1% obtains current efficiency correction factor 0.914.
Then, control unit 11 is according to specified effective chlorine density 7.5ppm, the flow 1200m of main line 523/ h, electrolysis are single
The theoretical current efficiency 86.1% of member 51, current efficiency correction factor 0.914, the Faradaic current that electrolysis cells 51 are calculated are
540.2A.Control unit 11 is adjusted to 540.2A for electric current is exported.
When ship ballast water treatment system 50 continues to run, 13 real-time measurement of temperature detecting unit 12 and salinity measurement unit
The inflow coolant-temperature gage of electrolysis cells 51, salinity information find water temperature drop to 15 DEG C, and salinity is still 25PSU, inquires built-in electricity
It solves the current efficiency of unit 51 and flows into the relational graph of coolant-temperature gage, salinity, obtain the theory electricity of electrolysis cells 51 under operating condition
Flowing efficiency is 85.2%, multiplied by current efficiency correction factor 0.914, obtains the actual current effect of electrolysis cells 51 under operation work
Rate 77.9%.Meanwhile the flow of 15 real-time measurement main line 52 of flow detection unit becomes 1100m3/ h, according to default
Specified effective chlorine density 7.5ppm, 51 actual current efficiency 77.9% of electrolysis cells, the flow 1100m of main line 523/ h is calculated
The Faradaic current for obtaining electrolysis cells 51 is 500.3A, by the Faradaic current of electrolysis cells 51 to 500.3A.
When ship ballast water treatment system 50 continues to run, ballast water for ship processing control apparatus real-time measurement electrolysis cells
The Faradaic current of electrolysis cells 51 is calculated in 51 flow for flowing into coolant-temperature gage, salinity and main line 52, and exports corresponding
Signal is controlled to electrolysis cells 51.
In actual motion, using the ship ballast water treatment system 50 of the ballast water for ship processing control apparatus of the application,
Effective chlorine density fluctuation in its main line 52 can control within 7.5 ± 0.5ppm, and stability compares other control methods
It is significantly improved, has ensured ballast water treatment effect.
Fourth embodiment
Fig. 5 is the structural schematic diagram of the ship ballast water treatment system in fourth embodiment of the invention.As shown in figure 5, this
The ship ballast water treatment system 60 of embodiment includes electrolysis cells 61 and ballast water for ship processing control apparatus, ballast water for ship
Processing control apparatus includes temperature detecting unit 12, salinity measurement unit 13, flow detection unit 15, effective chlorine analytical unit 16
And control unit 11.
The signal output end of temperature detecting unit 12 is connected with the input terminal of control unit 11, the letter of temperature detecting unit 12
Number output end is connected with the input terminal of control unit 11, the output end of effective chlorine analytical unit 16 and the input terminal of control unit 11
It is connected, flow detection unit 15 is connected with the input terminal of control unit 11.In the present embodiment, control unit 11 includes operation
Control module and electrolysis power control module, the input terminal and temperature detecting unit 12, salinity measurement unit of operation control module
13, flow detection unit 15, effective chlorine analytical unit 16 connect, the output end and electrolysis power control module of operation control module
Input terminal connection, the output end of electrolysis power control module connect with the electrolysis power of electrolysis cells 61.
In the present embodiment, ship ballast water treatment system includes main line 62, and the entrance of main line 62 is equipped with filter
65, electrolysis cells 61, temperature detecting unit 12 and salinity measurement unit 13 are arranged in main line 62, temperature detecting unit 12 and
Salinity measurement unit 13 is located at before the entrance of electrolysis cells 61.Effective chlorine analytical unit 16 passes through water intaking pipeline 66 and main line
The entrance of 62 connections, water intaking pipeline 66 is located at the rear of electrolysis cells 61.Flow detection unit 15 is arranged in main line 62, flow
Detection unit 15 is located between the entrance and electrolysis cells 61 of water intaking pipeline 66.
Effective solutions of chlorine in main line 62 is electrolysed ballast water by electrolysis cells 61 and generates, and effective solutions of chlorine has very strong
Oxidisability, it is biological that planktonic organism, larva, spore and pathogen in seawater etc. can be killed.Temperature detecting unit 12 is used for
Detection enters the temperature of the ballast water of electrolysis cells 61, and salinity measurement unit 13 is used to detect the ballast water into electrolysis cells 61
Salinity, flow detection unit 15 is used to detect the flow of ballast water in main line 62, and effective chlorine analytical unit 16 is for examining
Survey the effective chlorine density in main line 62.
Control process of the ship ballast water treatment system 60 of the present embodiment described further below under actual condition.
Before ship ballast water treatment system 60 brings into operation, according to the effective chlorine density 5.0ppm of the main line 62 of setting,
The metered flow 300m of main line 623The specified chlorine yield 1500g/h of electrolysis cells 61 is calculated in/h, inquires shown in Fig. 2
Current efficiency and ocean temperature, the relational graph of salinity obtain 20 DEG C, the current efficiency of electrolysis cells 61 is under 30PSU seawater
88.0%, according to formula one, specified Faradaic current 128.8A is calculated.
It controls electrolysis cells 61 first to start by specified Faradaic current 128.8A, after system run all right, passes through effective chlorine point
The water intaking pipeline 66 of analysis unit 16 takes a certain amount of water sample, is delivered to effective chlorine analytical unit 16, while temperature detecting unit 12 is real
When measurement electrolysis cells 61 inflow water be 25 DEG C, the inflow salinity water of 13 real-time measurement electrolysis cells 61 of salinity measurement unit is
35PSU, the flow of 15 real-time measurement main line 62 of flow detection unit are 250m3/ h is transmitted to control unit 11.Control unit
11 temperature and salinity measured according to temperature detecting unit 12 and salinity measurement unit 13 inquire the electricity of built-in electrolysis cells 61
It flows efficiency and flows into the relational graph of coolant-temperature gage, salinity, the theoretical current efficiency for obtaining electrolysis cells 61 under operating condition is
88.8%.At this point, the effective chlorine density that effective chlorine analytical unit 16 measures is 5.85ppm, it is transmitted to control unit 11, control is single
It is 5.85ppm that member 11, which combines effective chlorine density, flow 250m3Electrolysis cells are calculated in/h and specified Faradaic current 128.8A
61 actual current efficiency is 85.8%.
Theoretical current with the actual current efficiency 85.8% of electrolysis cells 61 divided by electrolysis cells 61 under operating condition
Efficiency 88.8% obtains current efficiency correction factor 0.966.
Then, for control unit 11 according to specified effective chlorine density 5.0ppm, the flow 250m3/h of main line 62, electrolysis is single
The theoretical current efficiency 88.8% of member 61, correction factor 0.966, the Faradaic current that electrolysis cells 61 are calculated is 132.1A.
Control unit 11 outputs signal to the electrolysis power controller of ship ballast water treatment system 60, so that output electric current is adjusted to
132.1A。
When ship ballast water treatment system 60 continues to run, 13 real-time measurement of temperature detecting unit 12 and salinity measurement unit
The inflow coolant-temperature gage of electrolysis cells 61, salinity information, discovery water temperature are increased to 30 DEG C, and salinity falls to 25PSU, inquire built-in
The current efficiency of electrolysis cells 61 and the relational graph for flowing into coolant-temperature gage, salinity, obtain the theory of electrolysis cells 61 under operating condition
Current efficiency 84.9% obtains the actual current effect of electrolysis cells 61 under operation work multiplied by current efficiency correction factor 0.966
Rate 82.0%.Meanwhile the flow of 15 real-time measurement of flow detection unit pressure main line 62 becomes 320m3/ h, control unit 11
According to specified effective chlorine density 5.0ppm, the actual current efficiency 82.0% of electrolysis cells 61, the flow 320m of main line 623/ h,
The Faradaic current that electrolysis cells 61 are calculated according to chlorine yield calculation formula is 147.5A, is exported to electrolysis power controller,
To adjust Faradaic current to 147.5A.
In ballast water treatment system operational process, inflow coolant-temperature gage, salinity and the main line of real-time measurement electrolysis cells 61
62 flow is calculated the Faradaic current of electrolysis cells 61, and Faradaic current is adjusted.When the running,
The effective chlorine density of ballast water main line 62 is maintained always in 5.0 ± 0.5ppm interval range of setting, in ballast water effectively
The fluctuation of cl concn is substantially reduced.
The above described is only a preferred embodiment of the present invention, be not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this profession
Member, without departing from the scope of the present invention, when the technology contents using the disclosure above make a little change or modification
It is right according to the technical essence of the invention for the equivalent embodiment of equivalent variations, but without departing from the technical solutions of the present invention
Any simple modification, equivalent change and modification made by above embodiments, all of which are still within the scope of the technical scheme of the invention.
Claims (10)
1. a kind of ballast water for ship processing control apparatus characterized by comprising
Temperature detecting unit, for detecting the temperature for entering the ballast water of electrolysis cells of ship ballast water treatment system；
Salinity measurement unit, for detecting the salinity into the ballast water of the electrolysis cells；
Flow detection unit, the flow of the ballast water in main line for detecting the ship ballast water treatment system；
Effective chlorine analytical unit, for detecting the effective chlorine density in the main line；
Control unit is started to work for controlling the electrolysis cells with specified Faradaic current；It is also used to be examined according to the temperature
Survey unit, the salinity measurement unit, the flow detection unit, the detection data of the effective chlorine analytical unit and the volume
Determine Faradaic current, current efficiency-temperature salinity relation data of the electrolysis cells calculates the current efficiency of the electrolysis cells
Correction factor, and according to specified effective chlorine density, the current efficiency correction factor, the current efficiency-temperature salinity relationship
Data and the temperature detecting unit, the salinity measurement unit, the flow detection unit detection data control the electricity
Solve the Faradaic current of unit.
2. ballast water for ship processing control apparatus as described in claim 1, which is characterized in that the temperature detecting unit and institute
It states in the pipeline where the electrolysis cells are arranged in salinity measurement unit, the temperature detecting unit and the salinity measurement list
Member is located at before the entrance of the electrolysis cells.
3. ballast water for ship processing control apparatus as described in claim 1, which is characterized in that the effective chlorine analytical unit is logical
It crosses water intaking pipeline to connect with the main line, the entrance of the water intaking pipeline is located at the rear of the electrolysis cells, the flow
Detection unit is arranged in the main line.
4. a kind of ballast water for ship process control method characterized by comprising
The electrolysis cells of control ship ballast water treatment system are started to work with specified Faradaic current；
According to the temperature for the ballast water for entering the electrolysis cells, the salinity of ballast water into the electrolysis cells, ship pressure
Carry the flow of the ballast water in the main line of water treatment system, the detected value and the volume of effective chlorine density in the main line
Determine Faradaic current, current efficiency-temperature salinity relation data of the electrolysis cells calculates the current efficiency of the electrolysis cells
Correction factor；
Temperature, the salinity of ballast water into the electrolysis cells, main line of the ballast water of the electrolysis cells are obtained in real time
In ballast water flow detected value；
According to the detected value of acquisition, specified effective chlorine density, the current efficiency correction factor, the current efficiency-temperature-salt
Degree relation data controls the Faradaic current of the electrolysis cells.
5. ballast water for ship process control method as claimed in claim 4, which is characterized in that at the control ballast water for ship
The electrolysis cells of reason system are started to work with specified Faradaic current, comprising:
Specified chlorine yield is calculated according to specified effective chlorine density and metered flow, and, according to rated temperature, specified salinity, institute
Current efficiency-temperature salinity the relation data for stating the electrolysis cells of ship ballast water treatment system obtains the electrolysis cells
Rated current efficiency；
The specified Faradaic current of the electrolysis cells is calculated according to the rated current efficiency and the specified chlorine yield；
Start the electrolysis cells according to the specified Faradaic current.
6. ballast water for ship process control method as claimed in claim 4, which is characterized in that described according to the entrance electrolysis
The temperature of the ballast water of unit, into the salinity of ballast water of the electrolysis cells, the main line of ship ballast water treatment system
In the flow of ballast water, effective chlorine density in the main line detected value and the specified Faradaic current, the electrolysis
The current efficiency of unit-temperature salinity relation data calculates the step of current efficiency correction factor of the electrolysis cells, packet
It includes:
According to enter the electrolysis cells ballast water temperature, into the electrolysis cells ballast water salinity detected value
And the current efficiency of the electrolysis cells-temperature salinity relation data obtains the first theoretical current efficiency, and, according to supervisor
The flow of ballast water in road, the detected value of effective chlorine density in main line and the specified Faradaic current calculate actual current
Efficiency；
The current efficiency correction factor of electrolysis cells described in the first theoretical current efficiency and the actual current efficiency calculation.
7. ballast water for ship process control method as claimed in claim 4, which is characterized in that the detection according to acquisition
Described in value, specified effective chlorine density, the current efficiency correction factor, the current efficiency-temperature salinity relation data control
The step of Faradaic current of electrolysis cells, comprising:
According to enter the electrolysis cells ballast water temperature, into the electrolysis cells ballast water salinity detected value
And the current efficiency-temperature salinity relation data obtains the second theoretical current efficiency；
According in the current efficiency correction factor, the second theoretical current efficiency, specified effective chlorine density and main line
The detected value of the flow of ballast water calculates practical Faradaic current；
The electrolysis cells work is controlled according to the practical Faradaic current, returns to the pressure for obtaining the electrolysis cells in real time
Carry water temperature, into the ballast water in the salinity of ballast water of the electrolysis cells, main line flow detected value step
Suddenly.
8. a kind of ship ballast water treatment system, which is characterized in that including electrolysis cells and ship pressure as described in claim 1
Carry water processing control device.
9. ship ballast water treatment system as claimed in claim 8, which is characterized in that including electrolysis pipeline and main line, institute
The entrance for stating electrolysis pipeline is connected to the main line respectively with outlet, the electrolysis cells, the ballast for cruising water process control
The temperature detecting unit and salinity measurement unit of device processed are arranged in the electrolysis pipeline, the temperature detecting unit and described
Salinity measurement unit is located at before the entrance of the electrolysis cells, the effective chlorine analysis of the ballast water for ship processing control apparatus
Unit is connect by pipeline of fetching water with the main line.
10. ship ballast water treatment system as claimed in claim 8, which is characterized in that the electrolysis cells, the ship pressure
The master of the ship ballast water treatment system is arranged in the temperature detecting unit and salinity measurement unit that carry water processing control device
In pipeline, the temperature detecting unit and the salinity measurement unit are located at before the entrance of the electrolysis cells, the ship
The effective chlorine analytical unit of ballast water treatment control device is connect by pipeline of fetching water with the main line.
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| CN112939153A (en) * | 2019-12-11 | 2021-06-11 | 青岛双瑞海洋环境工程股份有限公司 | Ship ballast water treatment method and system |
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| CN106115860A (en) * | 2015-05-08 | 2016-11-16 | 泰科罗斯有限公司 | The ship ballast water processing means of electrolysis mode and method |
| KR20170047516A (en) * | 2015-10-23 | 2017-05-08 | 한국해양대학교 산학협력단 | Apparatus for sterilization of ballast water |
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| CN106115860A (en) * | 2015-05-08 | 2016-11-16 | 泰科罗斯有限公司 | The ship ballast water processing means of electrolysis mode and method |
| KR20170047516A (en) * | 2015-10-23 | 2017-05-08 | 한국해양대학교 산학협력단 | Apparatus for sterilization of ballast water |
| CN105585182A (en) * | 2016-03-03 | 2016-05-18 | 金晨光 | Ballast water treatment equipment |
| CN105800842A (en) * | 2016-06-02 | 2016-07-27 | 章明歅 | Circulating cooling water bypass flow water treatment system and bypass flow water treatment method |
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| CN112939153A (en) * | 2019-12-11 | 2021-06-11 | 青岛双瑞海洋环境工程股份有限公司 | Ship ballast water treatment method and system |
| CN112939153B (en) * | 2019-12-11 | 2023-04-07 | 青岛双瑞海洋环境工程股份有限公司 | Ship ballast water treatment method and system |
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