Self-heating electrolytic ballast water treatment system

Abstract

The invention discloses a self-heating electrolytic ballast water treatment system, which comprises an electrolysis unit, the electrolysis unit comprises an electrolytic bath and a heat transfer device, the electrolytic bath comprises a liquid inlet and a liquid outlet, seawater to be electrolyzed is input through the liquid inlet, and the heated electrolyzed seawater is output through the liquid outlet. And the heat conveying equipment is communicated with a liquid inlet and a liquid outlet of the electrolytic cell and transmits heat of the heated electrolyzed seawater to the seawater to be electrolyzed, so that the seawater to be electrolyzed enters the electrolytic cell after the temperature of the seawater to be electrolyzed is increased. Heat of other ship equipment does not need to be borrowed, use of connecting pipeline pipe fitting valves is reduced, the association risk between heat source equipment and the ballast water treatment device is reduced, and safety is high.

Description

Technical Field

[0001] The invention relates to the field of marine ship ballast water treatment, in particular to a self-heating electrolysis ballast water treatment system. Background Art

[0002] In order to prevent the invasion of marine life caused by the discharge of ballast water from ships, IMO passed the International Convention for the Control and Management of Ships' Ballast Water and Deposits, 2004 (hereinafter referred to as the Ballast Water Convention) in 2004, which officially came into effect in 2017. It requires ships to treat seawater when ballasting. The branch electrolysis method is one of the most effective chemical methods for commercial ballast water treatment. Its principle is to electrolyze seawater to produce active substances such as hypochlorite to destroy the enzyme system in organisms and kill marine organisms.

[0003] The branch electrolysis ballast water treatment system requires that the seawater temperature entering the electrolysis unit be ≥5°C. When it is <5°C, problems such as reduced electrolysis efficiency and high energy consumption will occur. The seawater temperature fluctuates between -2 and 32°C as the ship changes with the season and navigation area. When the seawater temperature is below 5°C, the seawater needs to be heated.

[0004] The commonly used method at present is to use a heat exchanger to heat the seawater in front of the electrolysis unit entrance by transferring the heat generated by the high-temperature steam generated by the ship's boiler, the heat generated by the seawater cooling the ship's low-temperature fresh water cooling system, the exhaust gas generated by the ship's engine or the heat exchanged from other ship equipment.

[0005] The heat required for heating in the above method all comes from other equipment on the ship. The connection between the heat source equipment and the ballast water treatment device not only increases the corresponding pipeline valves and other ancillary equipment, but also increases the risk of association due to the series connection between different ship equipment. It is necessary to take corresponding isolation measures and safety measures to ensure the stability between equipment. The system equipment that provides heat cannot guarantee real-time simultaneous operation with the ballast water treatment system. When they cannot work at the same time, the heat source required for seawater heating cannot be guaranteed. Summary of the invention

[0006] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to provide a self-heating electrolysis ballast water treatment system, which does not require the use of heat from other ship equipment, reduces the use of connecting pipes, fittings and valves, reduces the associated risks between the heat source equipment and the ballast water treatment device, and has high safety.

[0007] The purpose of the present invention is achieved through the following technical solutions:

[0008] A self-heating electrolysis ballast water treatment system comprises an electrolysis unit, wherein the electrolysis unit comprises an electrolytic cell and a heat transfer device, wherein the electrolytic cell comprises a liquid inlet and a liquid outlet, wherein the liquid inlet inputs seawater to be electrolyzed, and the liquid outlet outputs the heated electrolyzed seawater, wherein the heat transfer device is connected to the liquid inlet and the liquid outlet of the electrolytic cell, wherein the heat transfer device transfers the heat of the heated electrolyzed seawater to the seawater to be electrolyzed, so that the seawater to be electrolyzed enters the electrolytic cell after the temperature is increased.

[0009] In one embodiment, the temperature of the seawater to be electrolyzed is increased to ≥5°C.

[0010] In one embodiment, the system further comprises a seabed gate, a ballast pipeline and a ballast tank, wherein the seabed gate is connected to the ballast tank via the ballast pipeline, and a ballast pump is provided on the ballast pipeline for pumping seawater into the ballast tank; the liquid inlet of the electrolytic cell is connected to the ballast pipeline via a liquid inlet pipe for introducing part of the seawater in the ballast pipeline into the electrolytic cell; the liquid outlet of the electrolytic cell is connected to the ballast pipeline via a liquid outlet pipe for transporting part of the liquid discharged from the liquid outlet to the ballast pipeline and then into the ballast tank; the heat transfer device is connected to the liquid inlet pipe and the liquid outlet pipe.

[0011] In one embodiment, the heat transfer device is a heat exchanger, and the cold fluid inlet and the cold fluid outlet of the heat exchanger are connected to the ballast pipeline and the liquid inlet of the electrolytic cell through the liquid inlet pipe, and the hot fluid inlet and the hot fluid outlet of the heat exchanger are connected to the liquid outlet of the electrolytic cell and the ballast pipeline through the liquid outlet pipe.

[0012] In one embodiment, the heat transfer device is a reflux bypass, which connects the liquid inlet pipe and the liquid outlet pipe, so that the heated electrolyzed seawater passes through the reflux bypass and mixes with part of the seawater in the ballast pipeline in the liquid inlet pipe to form the seawater to be electrolyzed.

[0013] In one embodiment, a reflux valve and a check valve are provided on the reflux bypass, and the reflux valve is connected to a controller signal to control the opening degree of the reflux valve.

[0014] In one embodiment, the liquid inlet pipe is provided with an inlet valve and a seawater booster pump.

[0015] In one embodiment, a filter is provided on the ballast pipeline, and the filter is used to filter the seawater entering the ballast pipeline.

[0016] In one embodiment, a dosing valve is provided on the liquid outlet pipe, and the dosing valve is connected to a controller signal to control the opening degree of the dosing valve.

[0017] In one embodiment, a temperature sensor is provided on the electrolytic cell to detect the temperature of the seawater to be electrolyzed entering the electrolytic cell, and the temperature sensor is connected to a controller signal.

[0018] The beneficial effects of the present invention are as follows: the heat of the partially heated electrolyzed seawater at the liquid outlet of the electrolytic cell is transferred to the seawater to be electrolyzed at the liquid inlet of the electrolytic cell through the heat transfer device, so that the temperature of the seawater to be electrolyzed is increased, so that the heat required for heating the seawater in front of the electrolytic cell comes entirely from the electrolytic cell itself, without borrowing the heat of other ship equipment, reducing the use of connecting pipes, pipe fittings and valves, and reducing the associated risks between the heat source equipment and the ballast water treatment device, and having high safety; when the system equipment providing heat cannot work, the heat source for heating the seawater can be guaranteed, and the heat source has high stability; the heat transfer device is only installed in the electrolytic unit, does not occupy excess space, and has high space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 is a schematic diagram of a self-heating electrolysis ballast water treatment system according to an embodiment of the present invention;

[0021] Figure 2 It is a schematic diagram of a self-heating electrolysis ballast water treatment system according to another embodiment of the present invention.

[0022] In the figure:

[0023] 1. Subsea gate; 2. Ballast pump; 3. Filter; 4. Ballast pipeline; 5. Electrolysis unit; 51. Electrolyzer; 511. Liquid inlet; 512. Liquid outlet; 513. Temperature sensor; 52. Heat transfer equipment; 521. Reflux valve; 522. Check valve; 523. Cold fluid inlet; 524. Cold fluid outlet; 525. Hot fluid inlet; 526. Hot fluid outlet; 53. Liquid inlet pipe; 531. Inlet valve; 532. Seawater booster pump; 54. Liquid outlet pipe; 541. Dosing valve; 6. Ballast tank. DETAILED DESCRIPTION

[0024] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the description of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0026] The directions or positional relationships indicated by terms such as “upper”, “lower”, “left”, “right”, “front”, “back”, “top”, “bottom”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the inventive product is usually placed when used. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0027] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0028] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0029] First embodiment

[0030] like Figure 1 As shown, the present invention provides a self-heating electrolysis ballast water treatment system, including an electrolytic cell 51 and a heat transfer device 52. The electrolytic cell 51 includes a liquid inlet 511 and a liquid outlet 512. The liquid inlet 511 inputs seawater to be electrolyzed, and the liquid outlet 512 outputs the heated electrolyzed seawater. The heat transfer device 52 connects the liquid inlet 511 and the liquid outlet 512 of the electrolytic cell 51. The heat transfer device 52 transfers the heat of the heated electrolyzed seawater to the seawater to be electrolyzed, so that the seawater to be electrolyzed enters the electrolytic cell 51 after the temperature is increased.

[0031] Specifically, the seawater to be electrolyzed is input into the electrolytic cell 51, and after electrolysis, active substances such as hypochlorite are formed to destroy the enzyme system in the organism and kill marine organisms. The temperature of the seawater after electrolysis increases, and the heat of the heated electrolyzed seawater at the liquid outlet 512 of the electrolytic cell 51 is transferred to the seawater to be electrolyzed at the liquid inlet 511 of the electrolytic cell 51 through the heat transfer device 52, so that the temperature of the seawater to be electrolyzed increases before entering the electrolytic cell 51, meeting the temperature requirement of the electrolytic cell 51 and ensuring the electrolysis efficiency; here, the heat required for heating the seawater before the electrolytic cell 51 comes entirely from the electrolytic cell 51 itself, without borrowing the heat of other ship equipment, reducing the use of connecting pipes, fittings and valves, and reducing the associated risks between the heat source equipment and the ballast water treatment device, with high safety; when the system equipment providing heat cannot work, the heat source for heating the seawater can also be guaranteed, and the heat source has high stability; and the heat transfer device 52 is only installed in the electrolytic unit 5, which does not occupy extra space and has high space utilization, and it is relatively simple to improve the heat transfer device 52 on the basis of the existing electrolytic unit 5.

[0032] Furthermore, the temperature of the seawater to be electrolyzed is increased to ≥5°C. When the seawater temperature is lower than 5°C, the seawater needs to be heated. The heat of the heated electrolyzed seawater at the liquid outlet 512 of the electrolytic cell 51 is transferred to the seawater to be electrolyzed at the liquid inlet 511 through the heat transfer device 52, so that the electrolysis efficiency is high and the energy consumption can be controlled.

[0033] Furthermore, if Figure 1 As shown, the system also includes a seabed gate 1, a ballast pipeline 4 and a ballast tank 6. The seabed gate 1 is connected to the ballast tank 6 through the ballast pipeline 4. The ballast pipeline 4 is provided with a ballast pump 2 for pumping seawater into the ballast tank 6. The liquid inlet 511 of the electrolytic cell 51 is connected to the ballast pipeline 4 through the liquid inlet pipe 53, so as to introduce part of the seawater in the ballast pipeline 4 into the electrolytic cell 51. The liquid outlet 512 of the electrolytic cell 51 is connected to the ballast pipeline 4 through the liquid outlet pipe 54, so as to transport part of the liquid discharged from the liquid outlet 512 to the ballast pipeline 4 and then merge into the ballast tank 6. The heat transfer device 52 is connected to the liquid inlet pipe 53 and the liquid outlet pipe 54. Among them, the connection point between the liquid inlet pipe 53 and the ballast pipeline 4 is located upstream of the connection point between the liquid outlet pipe 54 and the ballast pipeline 4, so that the electrolyzed seawater after heat exchange can directly enter the ballast tank 6 after being merged into the ballast pipeline 4.

[0034] Furthermore, if Figure 1As shown, the heat transfer device 52 is a heat exchanger, and the cold fluid inlet 523 and the cold fluid outlet 524 of the heat exchanger are connected to the ballast pipeline 4 and the liquid inlet 511 of the electrolytic cell 51 through the liquid inlet pipe 53, and the hot fluid inlet 525 and the hot fluid outlet 526 of the heat exchanger are connected to the liquid outlet 512 of the electrolytic cell 51 and the ballast pipeline 4 through the liquid outlet pipe 54. Specifically, the cold fluid inlet 523 and the cold fluid outlet 524 of the heat exchanger are connected to the liquid inlet pipe 53, so that the ballast pipeline 4, the cold fluid inlet 523 and the cold fluid outlet 524 of the heat exchanger, and the liquid inlet 511 of the electrolytic cell 51 are connected in sequence through the liquid inlet pipe 53, and the hot fluid inlet 525 and the hot fluid outlet 526 of the heat exchanger are connected to the liquid outlet pipe 54, so that the liquid outlet 512 of the electrolytic cell 51, the hot fluid inlet 525 and the hot fluid outlet 526 of the heat exchanger, and the ballast pipeline 4 are connected in sequence through the liquid outlet pipe 54, so that before the seawater enters the electrolytic cell 51, the heat exchanger exchanges heat with the seawater at the liquid outlet 512 of the electrolytic cell 51, so that the seawater is heated to ≥5°C before entering the electrolytic cell 51.

[0035] Furthermore, if Figure 1 As shown, the liquid inlet pipe 53 is provided with an inlet valve 531 and a seawater booster pump 532. The seawater booster pump 532 draws part of the seawater on the ballast pipeline 4 into the inlet of the inlet valve 531, so that the seawater in the ballast pipeline 4 can enter the electrolytic cell 51 after passing through the inlet valve 531 and the seawater booster pump 532 in sequence.

[0036] Furthermore, if Figure 1 As shown, a filter 3 is provided on the ballast pipeline 4, and the filter 3 is used to filter the seawater entering the ballast pipeline 4, filter the impurities in the seawater, and ensure the cleanliness of the seawater entering the electrolytic cell 51 and the ballast tank 6. Among them, the ballast pump 2, the inlet valve 531 and the seawater booster pump 532 are all connected to the controller signal to realize the automatic control of the system.

[0037] Furthermore, if Figure 1 As shown, a dosing valve 541 is provided on the liquid outlet pipe 54, and the dosing valve 541 is connected to the controller signal to control the opening degree of the dosing valve 541. The outlet of the dosing valve 541 is connected before the seawater on the ballast pipeline 4 enters the ballast tank 6.

[0038] Furthermore, if Figure 1 As shown, the electrolytic cell 51 is provided with a temperature sensor 513 for detecting the temperature of the seawater to be electrolyzed entering the electrolytic cell 51 . The temperature sensor 513 is connected to the controller signal for feeding back the temperature signal of the seawater to be electrolyzed entering the electrolytic cell 51 to the controller.

[0039] The working process of the self-heating electrolysis ballast water treatment system of this embodiment is as follows:

[0040] When the system is working, the ballast pump 2 draws seawater from the seabed gate 1, passes through the filter 3 and the ballast pipeline 4, and the seawater directly enters the ballast tank 6; and after passing through the filter 3, the relatively clean seawater enters the ballast tank 6. The electrolysis unit 5 takes about 1% of the ballast seawater on the ballast pipeline 4, performs electrolysis to produce sodium hypochlorite active organisms, and then adds the ballast water to the ballast pipeline 4 before entering the ballast tank 6, killing the marine microorganisms in the ballast pipeline 4.

[0041] When the electrolysis unit 5 is working, the inlet valve 531 and the dosing valve 541 are opened, and the seawater booster pump 532 draws seawater on the ballast pipeline 4, and passes through the inlet valve 531, the seawater booster pump 532, the heat exchanger, the temperature sensor 513, the electrolytic cell 51, the heat exchanger and the dosing valve 541 in sequence. Before the seawater enters the electrolytic cell 51, it exchanges heat with the seawater at the liquid outlet 512 of the electrolytic cell 51 through the heat exchanger, so that the seawater is heated to ≥5°C before entering the electrolytic cell 51. After the electrolytic cell 51 electrolyzes the seawater, the seawater is heated, and the heated seawater transfers heat to the seawater pumped into the ballast pipeline 4 by the seawater booster pump 532 through the heat exchanger, ensuring that the seawater is heated to ≥5°C before entering the electrolytic cell 51. Electrolysis produces sodium hypochlorite active organisms, which are then added to the ballast pipeline 4 before the ballast water enters the ballast tank 6.

[0042] The temperature sensor 513 is used to detect the temperature of the seawater before it is fed back into the electrolytic cell 51 .

[0043] This embodiment achieves a self-heating function through a heat exchanger to meet the temperature of the liquid inlet 511 of the electrolytic cell 51 without affecting the ballast water treatment effect.

[0044] The beneficial effects of the present invention are as follows: the heated seawater after electrolysis at the outlet 512 of the electrolytic cell 51 is heated up before entering the electrolytic cell 51 through a heat exchanger (as described in the first embodiment) or by recirculating part of the electrolyzed seawater (as described in the second embodiment), so that the temperature of the seawater before entering the electrolytic cell 51 is ≥5°C, meeting the temperature requirement of the electrolysis unit 5; the heat required for heating the seawater before the electrolytic cell 51 of the electrolysis ballast water treatment system of the present invention comes entirely from the electrolysis unit 5 itself, without borrowing heat from other ship equipment, thus reducing the use of connecting pipes, fittings and valves, and reducing the associated risks between the heat source equipment and the ballast water treatment device, and having high safety; the heat source for heating the seawater can be guaranteed even when the system equipment providing heat cannot work, and the heat source has high stability; the heat exchanger is only installed in the electrolysis unit 5, which does not occupy excess space and has high space utilization.

[0045] Second embodiment

[0046] like Figure 2As shown, the self-heating electrolysis ballast water treatment system provided by the second embodiment of the present invention is basically the same as the first embodiment, except that: the heat transfer device 52 is a reflux bypass, and the reflux bypass is connected to the liquid inlet pipe 53 and the liquid outlet pipe 54, so that part of the heated electrolyzed seawater is mixed with part of the seawater in the ballast pipeline 4 in the liquid inlet pipe 53 through the reflux bypass to form the heated seawater to be electrolyzed, and then enters the electrolytic cell 51 for electrolysis.

[0047] Furthermore, if Figure 2 As shown, a reflux valve 521 and a check valve 522 are provided on the reflux bypass. The reflux valve 521 is connected to the controller signal to control the opening degree of the reflux valve 521. The check valve 522 prevents fluid reflux and protects the system from the influence of reverse flow.

[0048] The working process of the self-heating electrolysis ballast water treatment system of this embodiment is as follows:

[0049] When the system is working, the ballast pump 2 draws seawater from the seabed gate 1, and the seawater directly enters the ballast tank 6 through the filter 3 and the ballast pipeline 4; after being filtered by the filter 3, the relatively clean seawater enters the ballast tank 6. The electrolysis unit 5 takes about 1% of the ballast seawater on the ballast pipeline 4, performs electrolysis to produce sodium hypochlorite active organisms, and then adds the ballast water to the ballast pipeline 4 before entering the ballast tank 6, so as to kill the marine microorganisms in the ballast pipeline 4.

[0050] When the electrolysis unit 5 is working, the inlet valve 531 and the dosing valve 541 are opened, and the seawater booster pump 532 draws seawater into the ballast pipeline 4, passing through the inlet valve 531, the seawater booster pump 532, the temperature sensor 513, the electrolytic cell 51 and the dosing valve 541 in sequence.

[0051] The inlet of the reflux bypass is connected to the liquid outlet 512 of the electrolytic cell 51 , and the outlet of the reflux bypass is connected to the liquid inlet 511 of the electrolytic cell 51 . The outlet connection is mixed with new seawater supplied from the seawater pump and then enters the electrolytic cell 51 .

[0052] The reflux bypass includes a reflux valve 521 and a check valve 522. The seawater heated by electrolysis passes through the reflux valve 521 and the check valve 522 in sequence from the liquid outlet 512 of the electrolytic cell 51 and is mixed before entering the electrolytic cell 51. After mixing with the new seawater replenished from the seawater pump, the seawater is heated to ≥5°C before entering the electrolytic cell 51.

[0053] The temperature sensor 513 detects the temperature of the mixed water before entering the electrolytic cell 51, and controls the opening degree of the reflux valve 521 and the dosing valve 541 through the controller to adjust the reflux ratio so that the temperature of the mixed water before entering the electrolytic cell 51 is ≥5°C.

[0054] This embodiment achieves a self-heating function by circulating backflow seawater to meet the seawater temperature at the liquid inlet 511 of the electrolytic cell 51 without affecting the ballast water treatment effect.

[0055] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this profession can make some changes or modifications to the technical contents disclosed above without departing from the scope of the technical solution of the present invention, which are equivalent embodiments of equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A self-heating electrolysis ballast water treatment system, It is characterized in that The invention comprises an electrolysis unit (5), wherein the electrolysis unit (5) comprises an electrolysis tank (51) and a heat transfer device (52), wherein the electrolysis tank (51) comprises a liquid inlet (511) and a liquid outlet (512), wherein the liquid inlet (511) inputs seawater to be electrolyzed, and the liquid outlet (512) outputs the heated electrolyzed seawater, wherein the heat transfer device (52) is connected to the liquid inlet (511) and the liquid outlet (512) of the electrolysis tank (51), and wherein the heat transfer device (52) transfers the heat of the heated electrolyzed seawater to the seawater to be electrolyzed, so that the seawater to be electrolyzed enters the electrolysis tank (51) after the temperature is increased.

2. The self-heating electrolysis ballast water treatment system according to claim 1, It is characterized in that The temperature of the seawater to be electrolyzed is increased to ≥5°C.

3. The self-heating electrolysis ballast water treatment system according to claim 1, It is characterized in that The system further comprises a seabed gate (1), a ballast pipeline (4) and a ballast tank (6); the seabed gate (1) is connected to the ballast tank (6) via the ballast pipeline (4); a ballast pump (2) is provided on the ballast pipeline (4) for pumping seawater into the ballast tank (6); the liquid inlet (511) of the electrolytic cell (51) is connected to the ballast pipeline (4) via a liquid inlet pipe (53) for introducing part of the seawater in the ballast pipeline (4) into the electrolytic cell (51); the liquid outlet (512) of the electrolytic cell (51) is connected to the ballast pipeline (4) via a liquid outlet pipe (54) for transporting part of the liquid discharged from the liquid outlet (512) to the ballast pipeline (4) and then into the ballast tank (6); the heat transport device (52) is connected to the liquid inlet pipe (53) and the liquid outlet pipe (54).

4. The self-heating electrolysis ballast water treatment system according to claim 3, It is characterized in that The heat transfer device (52) is a heat exchanger. The cold fluid inlet (523) and the cold fluid outlet (524) of the heat exchanger are connected to the ballast pipeline (4) and the liquid inlet (511) of the electrolytic cell (51) through the liquid inlet pipe (53). The hot fluid inlet (525) and the hot fluid outlet (526) of the heat exchanger are connected to the liquid outlet (512) of the electrolytic cell (51) and the ballast pipeline (4) through the liquid outlet pipe (54).

5. The self-heating electrolysis ballast water treatment system according to claim 3, It is characterized in that The heat transfer device (52) is a reflux bypass, and the reflux bypass is connected to the liquid inlet pipe (53) and the liquid outlet pipe (54), so that the heated electrolyzed seawater passes through the reflux bypass and is mixed with part of the seawater in the ballast pipeline (4) in the liquid inlet pipe (53) to form the seawater to be electrolyzed.

6. The self-heating electrolysis ballast water treatment system according to claim 5, It is characterized in that The reflux bypass is provided with a reflux valve (521) and a check valve (522), and the reflux valve (521) is connected to a controller signal to control the opening degree of the reflux valve (521).

7. The self-heating electrolysis ballast water treatment system according to claim 3, It is characterized in that The liquid inlet pipe (53) is provided with an inlet valve (531) and a seawater booster pump (532).

8. The self-heating electrolysis ballast water treatment system according to claim 3, It is characterized in that The ballast pipeline (4) is provided with a filter (3), and the filter (3) is used to filter the seawater entering the ballast pipeline (4).

9. The self-heating electrolysis ballast water treatment system according to claim 3, It is characterized in that The liquid outlet pipe (54) is provided with a dosing valve (541), and the dosing valve (541) is connected to a controller signal to control the opening degree of the dosing valve (541).

10. The self-heating electrolysis ballast water treatment system according to claim 1, It is characterized in that The electrolytic cell (51) is provided with a temperature sensor (513) for detecting the temperature of the seawater to be electrolyzed entering the electrolytic cell (51), and the temperature sensor (513) is connected to a controller signal.

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