KR200464122Y1 - Electrolytic Sterilization System for Sea Water of Ship - Google Patents

Abstract

The present invention is an electrolytic water treatment system for ships, which divides the rectifier according to its capacity to closely contact the electrolytic chamber, connects the rectifier and each electrode in the electrolytic chamber using a bus bar, and effectively uses the vessel's own cooling water or sea water to effectively rectify the rectifier. The purpose is to allow cooling.
An object of the present invention is a marine electrolytic apparatus comprising a electrolytic chamber equipped with a plurality of electrode modules, and a rectifier for supplying a DC power to the positive (+), negative (-) electrodes provided in each electrode module, A rectifier divided into parts according to the amount of current set for each electrode module; And a bus bar connecting the power supply terminal of each rectifier and the electrode terminal of each electrode module, wherein each rectifier is a circuit part in which a printed circuit board and an element are sealed, and a heating element in the circuit part is cooled by water cooling. It is configured to be separated into a heat dissipation unit, each rectifier is characterized in that configured to be in close contact with the electrolytic chamber.

Description

Electrolytic Sterilization System for Sea Water of Ship}

The present invention relates to an electrolytic water treatment system for ships, in supplying a DC power supply to the electrolysis device used for water treatment in ships to achieve electrical and chemical mechanisms, to minimize heat generation when connecting between the rectifier and the terminal of the electrode module, The present invention relates to an electrolytic water treatment system for ships that minimizes waste.

In general, the electrolytic device is used in ship sterilization disinfection process and waste water treatment process. Disinfection processes in ships are used for ballast water treatment, seawater desalination pretreatment, marine growth preventing system (MGPS) in sea chests, and wastewater treatment processes in ships are contaminated It is used for the treatment device of the water (Bilge Water).

In order to apply such an electrolytic apparatus to a vessel, it is necessary to satisfy the unique environmental conditions of the vessel, as well as to satisfy the requirements of the owner and shipyard.

As a rule, these devices are installed in the engine room or pump room in ships and should therefore not be affected by the poor environmental conditions of the engine room and pump room.

The environmental conditions of the engine room and pump room are very poor compared to the land, such as electromagnetic waves, noise and corrosion, which have high external input factors due to high vibration, oil vapor and hull ground due to high temperature, high humidity, rolling of the hull, generator and pump, etc. Not only do they have environmental conditions, they also lack power reserves, narrow installation space, and limitations on their own weight.

In addition, tankers (Tanker), Product Carrier, LNG carriers, etc., since most of the space of the vessel is explosion-proof area, there was a problem that it is difficult to apply to these types of vessels by the conventional non-explosion type electrolytic apparatus.

In particular, the amount of ballast water in a ship corresponds to about one third of the dead weight tonnage (DWT) of the ship, and the inflow of ballast water proceeds simultaneously with the cargo unloading operation, Since the unit inflow of ballast water is high because it wants to be completed, in general, the processing apparatus which has to deal with this when inflow of ballast water has a large capacity.

The unit power required for ballast water treatment is 600 ~ 1,200A / 100㎥ / hr depending on the salinity of seawater. Therefore, if the vessel ballast water is 5,000 ㎥ / hr, the maximum power required is 58,000A. will be.

Copper wire is generally used to transfer the large power supplied from the stop to the electrolytic part. The wire used in ships is generally within SQ150 and the stable current allowed by the wire of SQ150 is about 300A. Connecting wealth by copper requires a lot of thick copper.

In other words, as Table 1 shows the required power and dynamics of each ballast water, the number of copper wires is required, and as a result, a large space is needed to connect the stop and the electrolytic unit. In addition, in order to minimize the heat generated from the copper wire itself, it is necessary to maintain a constant interval between the copper wires, there was a very inefficient problem in the installation space.

Capacity (㎥ / hr) 500 1000 2000 3000 5000 Maximum power (A) 5830 11700 23300 35000 58300 Copper Standard (SQ) 150 150 150 150 150 Dynamic amount (In + Out) 40 78 156 234 390

In addition, when the ballast water is passed through the electrolytic unit, metal ions such as calcium (Ca) and magnesium (Mg) are attached to the negative electrode plate in the form of a scale. In the long run, there was a problem that the pressure loss of the pipe was increased by reducing the electrolytic efficiency and disturbing the water flow rate. To remove this scale, this can be solved by washing with hydrochloric acid or by changing the polarity of the electrode.

1 is a diagram illustrating a connection between a rectifier and an electrolytic unit according to the related art. Since the rectifier 24 needs to supply a DC power supply having a low voltage / high current, the size of the rectifier 24 is increased so as to be constant with the electrolytic unit 11. In addition to the need for a separate spaced distance, and to supply power to each of the electrolytic parts 11a to 11d, a large amount of current must be transmitted. As shown in the enlarged cross-sectional view, a plurality of thick copper wires ( A power line 27 made of Cu must be disposed to each of the electrolytic parts 11a to 11d.

As described above, the ballast water electrolytic treatment device, bilge water treatment device, pretreatment device for seawater desalination, and MGPS according to the prior art supply a low-voltage high current from a rectifier to an electrolytic part. Since wiring is complicated, wiring is complicated and expensive, and when moving a rectifier, changing a power line, or changing wiring, it is very complicated and there is a problem that work efficiency is reduced.

In addition, when the rectifier is disposed in the explosion-proof area, the wiring is very difficult, and there is a problem that it is difficult to apply to the explosion-proof vessel.

Therefore, in order to improve the problems of the prior art, the present invention divides the rectifier according to the unit electrode module capacity to closely contact the electrolytic chamber, and connects the rectifier and each electrode module in the electrolytic chamber using a busbar, It is an object of the present invention to provide an electrolytic water treatment system for a ship that easily cools the rectifier by using a vessel's own cooling water or seawater, and has a symmetrical structure in which bus bars are connected to easily implement polarity switching of electrodes.

The ship electrolytic apparatus for achieving the object of the present invention consists of an electrolytic chamber equipped with a plurality of electrode modules, and a rectifier for supplying a DC power to the positive (+), negative (-) electrode provided in each of the electrode modules An electrolytic apparatus for marine use, comprising: a rectifier divided into portions according to the amount of current set for each electrode module; And a bus bar connecting the power supply terminal of each rectifier to the electrodes of each electrode module, wherein each rectifier includes a circuit part in which a printed circuit board and an element are sealed, and a heating element in the circuit part. It is separated into a heat dissipation unit for cooling by water cooling, and each of the rectifiers is characterized in that configured to be in close contact with the electrolytic chamber.

Here, the circuit portion of each rectifier is a heat generating element is configured to be in close contact with the inner lower end, the heat dissipation portion is composed of a heat dissipation fin attached to the outer lower end of the circuit portion, and a water-cooled heat dissipation structure having a cooling water inlet, outlet so that cooling water is supplied to the heat dissipation fin It is characterized by.

In addition, the split rectifier includes a series group in which at least one series is connected in series for each electrode module or a parallel group in which a plurality of split rectifiers are connected in parallel.

In addition, the bus bar is a bus bar of the cathode and the anode is made of a symmetrical structure, characterized in that configured to replace the bus bar of the cathode and anode at regular intervals of operation time.

The electrolytic water treatment system for ships according to the present invention can be applied not only to non-explosion type general vessels, but also to vessels with an explosion risk, so that an electrolytic water treatment system for explosion-proof vessels can block the ignition source and eliminate the risk of explosion.

In addition, by configuring the ship's own cooling water or seawater as the cooling water of the rectifier, there is no need for a separate cooling device for cooling the existing rectifier, there is a simple configuration and cost reduction effect.

In addition, in the electrolytic water treatment system for ships according to the present invention, the rectifier and the electrolytic chamber are closely coupled, and the power supply terminal of the rectifier and each electrode of the electrode module are coupled to the bus bar, thereby minimizing power loss in the copper line. Since there is no need to install a large number of power lines with large diameter copper wires to each electrode of the electrode module, the installation cost is reduced, the overall components are simplified, the installation area is greatly reduced, and the rectifier is configured for each electrode module, so individual control Therefore, even if there is a problem with some rectifiers or electrode modules, it is possible to deliver by driving rectifiers and electrode modules that do not have defects.In the case of faulted rectifiers, they are not repaired in the field and replaced with new rectifiers. It is very easy to maintain and maintain the effective response in case of defects. The capacity of the electrolytic chamber can be easily increased by adding the number of individualized rectifiers.

In addition, the present invention is a commutator is composed of a sealed type, double-circuit and a heat radiating part can be certified as explosion-proof, high temperature (up to 55 ℃), high humidity (up to 95%), ship's harsh environmental conditions By minimizing the effects of vibrations, natural waves such as rolling, generators and pumps, electromagnetic waves, noise due to hull grounding, corrosion, etc., the electrolytic water treatment system for ships can be operated stably.

In addition, since the rectifier is divided into parts, the size can be minimized, so that the installation space can be installed very efficiently in a narrow area.

In addition, the electrolytic water treatment system for ships according to the present invention replaces the bus bars of the rectifier and the electrode module with the (+) and (-) electrodes at regular intervals of operation, thereby automatically changing the scale generated at the (-) electrode. It can be removed.

In addition, the present invention has the effect of supplying a high voltage by connecting a divided rectifier in series when a high voltage is required.

1 is a power line connection configuration of the rectifier and the electrolytic apparatus according to the prior art,
2 is a block diagram of a marine electrolytic water treatment system according to an embodiment of the present invention,
3 is an internal configuration diagram of a rectifier according to an embodiment of the present invention,
4 is an internal configuration diagram of a rectifier according to another embodiment of the present invention,
5 to 7 is a configuration diagram of the electrolytic water treatment system for ships comprising a rectifier in various forms according to an embodiment of the present invention,
8 is a view for explaining the replacement of the bus bar for descaling the electrode according to an embodiment of the present invention.

The detailed configuration and operation of the ship electrolytic water treatment system according to an embodiment of the present invention will be described in detail as follows.

2 is an overall configuration diagram of an electrolytic water treatment system for ships according to an embodiment of the present invention, the control unit 22 for controlling the electrolytic water treatment system, according to the control signal received from the control unit 22 AC power (440V, 3P) ) A plurality of divided rectifiers 210 to 240 for supplying a switchboard 23 for supplying, converting and supplying an AC power supplied from the switchboard 23 into a DC voltage of low voltage and high current, and each of the rectifiers 210 to 240. Electrolytic chamber 100 for electrolysis while passing through a plurality of electrode modules (110 ~ 140) and the electrode module (110 ~ 140), the seawater supplied by the electrode module (110 ~ 140) is installed in the ship by the power supplied from the) The rectifier 210 to 240 and the electrolytic chamber 100 are closely coupled to the surface, and the power supply terminals of the rectifiers 210 to 240 and the electrodes 111 of the respective electrode modules 110 to 140 ( The connection with 112 is connected to busbars 201 and 202.

As described above, the rectifiers 210 to 240 which convert the AC power supplied from the switchboard 23 into DC power and supply the respective electrode modules 110 to 140 are divided by electrode modules, respectively. It is easy to adjust the amount of current supplied to each of the electrode modules (110 ~ 140), and it is easy to manage for each electrode module when a problem occurs.

That is, instead of supplying DC power to the plurality of electrode modules 110 to 140 from one rectifier, each rectifier 210 to 240 corresponding to each of the electrode modules 110 to 140 is provided to supply power. When the supply current of the rectifiers 210 to 240 is controlled, the driving current of the electrode modules 110 to 140 can be easily adjusted.

For example, when a rectifier for supplying a driving power of 15V and 4000A large capacity is required to drive four electrode modules 110 to 140, the rectifier 210 to each of the four electrode modules 110 to 140 is required. In the case of 240), since the capacity of each rectifier 210 to 240 is divided to supply power of 15V and 1000A, the amount of current for each electrode module can be adjusted.

The rectifiers 210 to 240 are in close contact with the electrolytic chamber 100 having the electrode modules 110 to 140 built therein, and the power supply terminals 211 and 212 of the rectifiers 210 to 240. The electrodes 111 and 112 of the respective electrode modules 110 to 140 are connected to the bus bars 201 and 202, respectively, and the electrodes are rectified by the rectifier 210 through the bus bars 201 and 202, respectively. DC power is supplied to the module 110 to start the electrolysis operation by the current supplied from the electrode module 110.

That is, since the rectifiers 210 to 240 and the electrolytic chamber 100 are closely coupled, the electrodes of the power supply terminals 211 and 212 and the electrode modules 110 to 140 of the rectifiers 210 to 240 are closely coupled. In connecting the 111 and 112, the bus bars 201 and 202 having a standardized symmetrical structure can be connected in a symmetrical structure of the cathode and the anode.

3 is a schematic cross-sectional configuration diagram of a rectifier according to an embodiment of the present invention, wherein each rectifier includes a circuit part 213 in which a printed circuit board (PCB) 214 and a heating element 216 are sealed, and the circuit part ( The heat dissipation unit 216 is configured to be separated into a heat dissipation unit 215 for cooling by water cooling. 215 is composed of a plurality of heat dissipation fins 217 attached to the outer lower end of the circuit unit 213, and a water-cooled heat dissipation structure provided with coolant inlets and outlets 215a and 215b to supply coolant to the heat dissipation fins 217. .

The circuit portion 213 is formed in a sealed structure such as aluminum die casting to be suitable for waterproof / explosion-proof.

The heating element 216 is a transformer, a SCR (Sillicon Controlled Rectifier), a diode, a FET, an IGBT, and the like. Since the heating elements 216 are formed in close contact with the bottom surface of the heat dissipation fin 217, The heat generated from the heat generating element 216 is effectively transmitted to the heat radiation fins 217.

The heat dissipation unit 215 flows the cooling water supplied from the cooling water inlet 215a to pass through the heat dissipation fins, and discharges the heat-exchanged cooling water through the cooling water outlet 215b.

In addition, since the heat dissipation unit 215 is in close contact with the electrolytic chamber 100, the cooling efficiency is increased by the low temperature ballast water flowing in the heat dissipation unit 215 in the electrolytic chamber 100.

4 is a structure of a rectifier according to another embodiment of the present invention, each rectifier (210 ~ 240) is a heating element 216 and a rectifying circuit PCB 214 on the upper part in close contact with the electrolytic chamber 100 And a heat dissipation unit 215 for cooling the heat dissipation element 216 between the heat dissipation element 216 and the PCB 214.

That is, each of the rectifiers 210 to 240 according to the present invention generates heat from the heating element 216 due to the low voltage and high current, and supplies the vessel to the heat dissipation unit 215 for cooling the heating element 216. Or it is cooled by supplying sea water.

5 to 7 is a configuration diagram of various types of rectifiers according to an embodiment of the present invention, each rectifier is provided for each electrode module (110 ~ 140), at least one rectifier of the same capacity in series or in parallel It can be combined in various forms.

That is, only one rectifier 210 may be connected to the corresponding electrode module 110 using the bus bars 201 and 202, and the two rectifiers 210 having the same capacity may be stacked up and down. Parallel connection is possible.

5 is a diagram illustrating a parallel grouped embodiment of a rectifier according to another embodiment of the present invention, wherein two parallel-group rectifiers connected in parallel are connected to electrodes of the corresponding electrode module 120 by using bus bars 201 and 202. Since it is connected to the (111) 112, it is possible to supply twice the current capacity. The parallel group may increase the amount of current by configuring not only two rectifiers but also parallel groups connected in parallel with more than two rectifiers.

6 is a view showing an embodiment in which the parallel group rectifier is set up in accordance with an embodiment of the present invention, it is possible to use a parallel group of rectifiers connected three rectifiers in parallel on the surface of the electrolytic chamber 100 The rectifier power supply terminals 2111 and 212 of the parallel group in the standing state are connected to the electrodes 111 and 112 of each electrode module 120 and 130 using the bus bars 201 and 202. Will be connected.

7 is a view showing an embodiment of a series-connected series group of the rectifier according to an embodiment of the present invention, the rectifier 120 is stacked up and down, but each power supply terminal 211, 212 is connected in series supply The voltage can be doubled to enable power supply.

The series group may be a series group of two or more rectifiers 120, so that the current is the same and the voltage is supplied upward, so that the electrolysis is possible when a high voltage is required.

8 is a view for explaining a replacement state of the bus bar according to an embodiment of the present invention, when the electrode modules 110 to 140 are used for a long time, the scale is generated due to electrolysis at the (-) electrode, Degradation efficiency is lowered and the flow of fluid is interrupted to increase the pressure loss of the pipe. To this end, the scale must be removed. For this purpose, the polarity of the electrode is changed by swapping the busbar connected to the (-) electrode and the busbar connected to the (+) electrode in a symmetrical structure at regular intervals of time, thereby changing the polarity of the previous (-) electrode. It will automatically remove the scale accumulated in.

Marine electrolytic water treatment system according to the present invention described above is not limited to the above embodiment, it is possible to vary the number or capacity of the rectifier and the electrode module in accordance with the electrolytic capacity of the electrolytic chamber, and the following utility model registration Without departing from the gist of the present invention claimed in the claims, there is a technical spirit to the extent that anyone with ordinary knowledge in the field to which the present invention belongs can be variously modified.

100: electrolysis chamber 110 ~ 140: electrode module
111,112: electrode 201,202: busbar
210 ~ 240: Rectifier 211,212: Power supply terminal
213: circuit part 214: PCB
215: heat dissipation part 215a, 215b: cooling water inlet and outlet
216: heating element 217: heat dissipation fin

Claims (8)

In the marine electrolysis apparatus consisting of an electrolytic chamber equipped with a plurality of electrode modules, and a rectifier for supplying a DC power to the positive (+), negative (-) electrodes provided in each electrode module,
A plurality of rectifiers divided according to the amount of current set for each electrode module; And
It comprises a bus bar (Busbar) for connecting the power supply terminal of each rectifier and the electrode terminal of each electrode module,
Each rectifier is divided into a printed circuit board and a circuit portion in which the element is sealed, and a heat dissipation portion for cooling the heating element in the circuit portion by water cooling.
Each rectifier is an electrolytic water treatment system for ships, characterized in that configured to be in close contact with the electrolytic chamber.
The method of claim 1,
The circuit portion of each rectifier is configured to be in close contact with the heating element inside the lower end,
The heat dissipation unit is a heat dissipation fin attached to the outer lower end of the circuit portion, and
Electrolytic water treatment system for ships, characterized in that made of a water-cooled heat radiation structure further comprises a cooling water inlet, outlet so that the cooling water is supplied to the radiating fins. The method of claim 1,
Each of the rectifiers are in close contact with the surface of the electrolytic chamber, respectively, and each of the divided rectifiers, the electrolytic water treatment system for ships, characterized in that consisting of a cooling tube for passing the cooling water between the heat sink of the printed circuit board and the heating element.
4. The method according to any one of claims 1 to 3,
The cooling water supplied to the heat dissipation unit is an electrolytic water treatment system for ships, characterized in that the ship itself cooling water or sea water.
The method of claim 1,
Each rectifier is divided into one rectifier for each electrode module, the electrolytic water treatment system for ships.
The method of claim 1,
The split rectifier is an electrolytic water treatment system for a ship, characterized in that composed of a series group connected to one or more in series for each electrode module or a parallel group connected to a plurality of split rectifiers in parallel.
The method according to claim 6,
The parallel group of the divided rectifiers are in contact with each other in close contact with the surface of the electrolytic chamber in the state of standing or standing, electrolytic water treatment system for ships.
The method of claim 1,
The bus bar is made of a symmetrical structure of the bus bar of the cathode and the anode, the electrolytic water treatment system for ships, characterized in that configured to replace the bus bar of the cathode and anode at regular intervals.

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