Skid-mounted ship high-temperature fresh water cooling device and system

Abstract

The invention provides a skid-mounted ship high-temperature fresh water cooling device and system, the skid-mounted ship high-temperature fresh water cooling device comprises an outfitting frame and system equipment integrally mounted on the outfitting frame, and a hoisting part is arranged on the outfitting frame. The system equipment at least comprises a fresh water generator, a main engine cylinder sleeve water cooler, a main engine cylinder sleeve water pump, a main engine cylinder sleeve water preheating pump, a main engine cylinder sleeve water preheater, dosing equipment and a system pipeline. The system pipeline is connected with all the system devices and comprises a main inlet and a main outlet, and a first external connector and a second external connector are arranged between the main inlet and the main outlet; the main inlet is used for being connected with a main engine cylinder sleeve outlet, the main outlet is used for being connected with a main engine cylinder sleeve inlet, the first external connector is used for being connected with a high-temperature expansion water tank, and the second external connector is used for being connected with a clean water cabin. Integrated design of ship high-temperature fresh water cooling related equipment is achieved, the ship high-temperature fresh water cooling related equipment can be independently assembled and debugged and integrally hoisted and installed, the on-site workload is reduced, the construction difficulty is lowered, and the efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of high-temperature fresh water cooling systems for ships, and in particular, to a skid-mounted high-temperature fresh water cooling device and system for ships. Background Art

[0002] As the core support for the operation of a ship, the thermal management efficiency of the ship's power system directly affects the operating reliability of the main engine and the energy utilization efficiency. Among them, the high-temperature fresh water cooling system, as an important part of the ship's power plant, undertakes the core function of maintaining the working temperature of key components such as the main engine cylinder liner. When designing traditional high-temperature fresh water cooling systems for ships, decentralized equipment layout is usually based on the layout of the engine room space. Although this design mode meets the basic function requirements to a certain extent, with the development of modern ships towards large-scale and intelligent, its inherent defects have gradually emerged and have become the key bottleneck restricting the improvement of the energy efficiency of the ship's power system and the control of operation and maintenance costs.

[0003] In the existing technical solutions, the high-temperature fresh water cooling system generally adopts a split layout architecture. Designers install the equipment of the high-temperature fresh water cooling system dispersedly in different areas of the engine room according to the engine room equipment layout plan. The equipment is connected through a complex pipeline network to form a closed-loop circulation system. This layout mode mainly has the following technical defects: First, the decentralized equipment results in a crisscross pipeline system, which not only increases the pipeline length and the number of elbows, but also easily causes problems such as a sharp increase in local flow resistance and an increase in heat loss, directly affecting the heat exchange efficiency of the system. Second, the separate placement of multiple equipment requires repeated coordination of the operation interfaces of different specialties (machinery, electrical, outfitting) during installation and construction, resulting in a long construction period and easy occurrence of process conflicts, significantly increasing the project complexity. Third, when maintaining the system, equipment needs to be repaired across regions, and the operation space is cramped. Especially for equipment that needs to replace filters and clean heat exchange plates regularly, the traditional layout is difficult to provide sufficient maintenance channels, resulting in time-consuming maintenance and potential safety hazards. In addition, the decentralized layout has a negative impact on the space utilization rate of the ship. The equipment occupies a large area, which is not conducive to the optimization of the engine room space, especially prominent in the design of new compact ships. Summary of the Invention

[0004] The purpose of the present application is to provide a skid-mounted high-temperature fresh water cooling device and system for ships, which realizes the integrated and modular design of equipment related to high-temperature fresh water cooling for ships. It can be independently assembled and debugged, and then hoisted and installed on the ship as a whole, reducing the on-site debugging workload, lowering the construction difficulty, and improving the construction efficiency.

[0005] In a first aspect, a skid-mounted high-temperature fresh water cooling device for a ship is provided, which includes an outfitting frame and system equipment integrally installed on the outfitting frame, and a lifting part is provided on the outfitting frame. The system equipment at least includes a water maker, a main engine jacket water cooler, a main engine jacket water pump, a main engine jacket water preheating pump, a main engine jacket water preheater, a chemical dosing device, and a system pipeline. The system pipeline connects each system equipment, and the system pipeline includes a main inlet and a main outlet, and a first external interface and a second external interface are arranged between the main inlet and the main outlet; the main inlet is used to connect to the jacket outlet of the main engine, the main outlet is used to connect to the jacket inlet of the main engine, the first external interface is used to connect to a high-temperature expansion water tank, and the second external interface is used to connect to a clean water tank.

[0006] In an implementable solution, a first parallel section and a second parallel section are sequentially arranged between the main inlet and the main outlet of the system pipeline; a second external interface and a first external interface are sequentially arranged between the first parallel section and the second parallel section; a main engine jacket water cooler is arranged between the second external interface and the first parallel section; the first parallel section includes a pipeline A and a pipeline B, and a water maker is arranged on the pipeline B; the second parallel section includes a pipeline C and a pipeline D, a main engine jacket water preheating pump and a main engine jacket water preheater are sequentially arranged on the pipeline C, and a main engine jacket water pump is arranged on the pipeline D; the outlets of the main engine jacket water preheating pump and the main engine jacket water pump are both connected to the inlet of the chemical dosing device, and the outlet of the chemical dosing device is connected to the position between the first parallel section and the second parallel section.

[0007] In an implementable solution, the system equipment on the outfitting frame further includes a main engine jacket auxiliary pump; the second parallel section further includes a pipeline E, the inlet of the pipeline E is connected to the position between the first parallel section and the second parallel section, and the pipeline E is divided into a first outlet and a second outlet; the first outlet is connected to the inlet of the main engine jacket water preheater; the second outlet is connected to the outlet of the main engine jacket water pump, and the connection position is upstream of the connection position with the inlet of the chemical dosing device; the main engine jacket auxiliary pump is arranged on the pipeline E.

[0008] In an implementable solution, the outfitting frame includes a frame body and a platform and passage structure installed on the frame body, and each system equipment is installed on the side of the platform and passage structure.

[0009] In an implementable solution, the main engine jacket water cooler is arranged at the central position of the outfitting frame, and other system equipment is distributed around the main engine jacket water cooler.

[0010] In an implementable solution, the water maker is arranged in the inlet direction of the main engine jacket water cooler.

[0011] In an implementable solution, the main engine jacket water pump, the main engine jacket water preheating pump, the main engine jacket water preheater, and the chemical dosing device are arranged in the outlet direction of the main engine jacket water cooler or close to its outlet direction.

[0012] In an implementable solution, there are no obstructions in the space above the main engine jacket water pump, the main engine jacket water preheating pump, and the main engine jacket auxiliary pump.

[0013] In an implementable solution, the skid-mounted high-temperature fresh water cooling device for ships further includes a control module, which is installed on the outfitting frame and located on the side of the platform and passage structure, and the height is within the range of 1400 - 1600 mm.

[0014] In a second aspect, there is also provided a high-temperature fresh water cooling system for ships, including the aforementioned skid-mounted high-temperature fresh water cooling device for ships, which is installed on the ship; it also includes a main engine, a high-temperature expansion water tank, and a clean water tank installed on the ship; the outlet of the main engine jacket is connected to the main inlet of the system pipeline of the skid-mounted high-temperature fresh water cooling device for ships, the inlet of the main engine jacket is connected to the main outlet of the system pipeline of the skid-mounted high-temperature fresh water cooling device for ships, the high-temperature expansion water tank is connected to the first external interface of the system pipeline of the skid-mounted high-temperature fresh water cooling device for ships, and the clean water tank is connected to the second external interface of the system pipeline of the skid-mounted high-temperature fresh water cooling device for ships.

[0015] Compared with the prior art, the beneficial effects of the present application at least include:

[0016] For the skid-mounted high-temperature fresh water cooling device of the present application, by using the outfitting frame as a common base for the high-temperature fresh water cooling related system equipment, the water maker, the main engine jacket water cooler, the main engine jacket water pump, the main engine jacket water preheating pump, the main engine jacket water preheater, the dosing equipment, and the related system pipelines are integrally installed on the same common base (i.e., the outfitting frame), reducing the pipeline length, improving the pipeline connection accuracy, reducing the space occupancy rate, and enhancing the ship integration and modularization level. At the same time, after integrating the pipelines and equipment in the skid-mounted high-temperature fresh water cooling device, the maintenance points are concentrated, making it more convenient for future maintenance and repair work.

[0017] Moreover, due to the integrated design of the skid-mounted high-temperature fresh water cooling device of the present application, the installation and commissioning of the high-temperature fresh water cooling related system equipment can be carried out independently of the ship construction, without the need to be carried out in the shipyard, and can be carried out in a more comfortable and clean environment, thus effectively reducing the quality problems caused by construction errors or environmental interference. After the commissioning is completed, since the system pipeline of the skid-mounted high-temperature fresh water cooling device of the present application is provided with external interfaces, after the overall lifting and installation to the predetermined position of the ship, only the relevant equipment needs to be connected to the reserved interfaces on this device, without the need for repeated commissioning, thus also improving the construction efficiency and construction safety and reducing the construction difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present application, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a three-dimensional structure diagram of a skid-mounted high-temperature fresh water cooling device for ships shown according to an embodiment of the present application;

[0020] Figure 2 It is Figure 1 the front view of the skid-mounted high-temperature fresh water cooling device for ships in

[0021] Figure 3 It is Figure 1 the top view of the outfitting frame of the skid-mounted high-temperature fresh water cooling device for ships in

[0022] Figure 4 It is Figure 1 the installation schematic diagram of the control module of the skid-mounted high-temperature fresh water cooling device for ships in

[0023] Figure 5 It is Figure 1 the schematic diagram of the strengthening structure of the skid-mounted high-temperature fresh water cooling device for ships in

[0024] Figure 6 It is Figure 1 the front view of the skid-mounted high-temperature fresh water cooling device for ships after being installed on the ship in

[0025] Figure 7 It is Figure 1 the pipeline schematic diagram of the skid-mounted high-temperature fresh water cooling device for ships in

[0026] In the figure: 1. Outfitting frame; 101. Frame body; 102. Platform and passage structure; 2. Water maker; 3. Main engine jacket water cooler; 4. Main engine jacket water pump; 5. Main engine jacket water preheating pump; 6. Main engine jacket water preheater; 7. Chemical dosing equipment; 8. System pipeline; 81. Main inlet; 82. Main outlet; 83. First external interface; 84. Second external interface; 9. Main engine; 10. High-temperature expansion water tank; 11. Clean water tank; 12. Main engine jacket auxiliary pump; 121. First outlet; 122. Second outlet; 13. Transfer lifting lug; 14. Strengthening structure; 15. Control module. Detailed implementation manners

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, rather than all of them. Usually, the components of the embodiments of this application described and shown in the accompanying drawings here can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of this application that is claimed, but merely represents selected embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of this application without creative efforts belong to the scope of protection of this application.

[0029] As Figure 1 and Figure 7 shown, this embodiment provides a skid-mounted high-temperature fresh water cooling device for ships, including an outfitting frame 1 and system equipment integrally installed on the outfitting frame 1. A lifting part (not shown in the figure) is provided on the outfitting frame 1, and the lifting part is used for lifting the skid-mounted high-temperature fresh water cooling device for ships as a whole.

[0030] Among them, the system equipment at least includes a water maker 2, a main engine jacket water cooler 3, a main engine jacket water pump 4, a main engine jacket water preheating pump 5, a main engine jacket water preheater 6, a chemical dosing device 7, and a system pipeline 8. The system pipeline 8 connects each system equipment, and the system pipeline 8 is provided with a main inlet 81 and a main outlet 82. A first external interface 83 and a second external interface 84 are provided between the main inlet 81 and the main outlet 82; the main inlet 81 is used to connect to the jacket outlet of the main engine 9, the main outlet 82 is used to connect to the jacket inlet of the main engine 9, the first external interface 83 is used to connect to the high-temperature expansion tank 10, and the second external interface 84 is used to connect to the clean water tank 11.

[0031] In this embodiment, as Figure 7 shown, a first parallel section and a second parallel section are sequentially arranged between the main inlet 81 and the main outlet 82 of the system pipeline 8. The second external interface 84 and the first external interface 83 are sequentially arranged between the first parallel section and the second parallel section, and the main engine jacket water cooler 3 is arranged between the second external interface 84 and the first parallel section. The first parallel section includes a pipeline A and a pipeline B, and the water maker 2 is arranged on the pipeline B. The second parallel section includes a pipeline C and a pipeline D. The main engine jacket water preheating pump 5 and the main engine jacket water preheater 6 are sequentially arranged on the pipeline C, and the main engine jacket water pump 4 is arranged on the pipeline D. The outlets of the main engine jacket water preheating pump 5 and the main engine jacket water pump 4 are both connected to the inlet of the chemical dosing device 7, and the outlet of the chemical dosing device 7 is connected to the position between the first parallel section and the second parallel section.

[0032] It should be noted that the high-temperature expansion water tank 10 is used to supplement the fresh water loss in the system. Since the high-temperature fresh water cooling cycle is a closed cycle, the fresh water will gradually be lost during the cycle. At this time, the high-temperature expansion water tank 10 is required to supplement it in time to ensure sufficient circulating water volume. The water maker 2 uses the heat exchange principle to evaporate seawater, thereby separating the salt and water in the seawater, and thus making fresh water from seawater. The dosing device 7 is used to add an appropriate amount of chemicals to the high-temperature fresh water cycle to prevent corrosion, scale and microbial growth. The chemicals can include preservatives, antibacterial agents and corrosion inhibitors, etc., which help to maintain the normal operation of the system and extend the service life of the equipment. The dosing device 7 can add chemicals automatically or manually and can be adjusted and controlled as required. The main engine jacket water cooler 3 is used for cooling the high-temperature fresh water after circulating and cooling the main engine jacket. When the fresh water flows through the equipment, its temperature will rise, and then it will flow back to the main engine jacket water cooler 3 for cooling again. The main engine jacket water preheater 6 stores the main engine jacket water and heaters, and is used to heat the fresh water to warm the main engine 9 during the berthing and anchoring of the ship.

[0033] For the skid-mounted high-temperature fresh water cooling device of the present application, through the outfitting frame 1 as the common base for the equipment of the high-temperature fresh water cooling related system, the water maker 2, the main engine jacket water cooler 3, the main engine jacket water pump 4, the main engine jacket water preheating pump 5, the main engine jacket water preheater 6, the dosing device 7 and the related system pipelines 8 are integrally installed on the same common base (i.e., the outfitting frame 1), reducing the pipeline length, improving the pipeline connection accuracy, reducing the space occupancy rate, and improving the ship integration and modularization level. At the same time, after the pipelines and equipment of the skid-mounted high-temperature fresh water cooling device are integrated, the maintenance points are concentrated, which is more convenient for future maintenance and repair work.

[0034] Moreover, due to the integrated design of the skid-mounted high-temperature fresh water cooling device of the present application, the installation and commissioning of the equipment related to the high-temperature fresh water cooling system can be carried out independently of the ship construction, without the need to carry out in the shipyard, and can be carried out in a more comfortable and clean environment, thus effectively reducing the quality problems caused by construction errors or environmental interference. After the commissioning is completed, since the system pipelines of the skid-mounted high-temperature fresh water cooling device of the present application are provided with various external interfaces, after the whole is hoisted and installed at the predetermined position of the ship, only the relevant equipment needs to be connected to the reserved interfaces on this device, without the need for repeated commissioning, thus also improving the construction efficiency and construction safety and reducing the construction difficulty.

[0035] In one embodiment, as Figure 7As shown, the system equipment on the outfitting frame 1 further includes a main engine cylinder liner auxiliary pump 12. The second parallel section further includes an E pipeline. The inlet of the E pipeline is connected between the first parallel section and the second parallel section. The E pipeline is divided into a first outlet 121 and a second outlet 122. The first outlet 121 is connected to the inlet of the main engine cylinder liner water preheater 6. The second outlet 122 is connected to the outlet of the main engine cylinder liner water pump 4, and the connection position is upstream of the connection position with the inlet of the chemical dosing equipment 7. The main engine cylinder liner auxiliary pump 12 is arranged on the E pipeline. As a redundant backup, the main engine cylinder liner auxiliary pump 12 can supply the main engine cylinder liner water preheater 6 through the first outlet 121, or switch to the second outlet 122 to perform the same function as the main engine cylinder liner water pump 4.

[0036] In one embodiment, as Figure 1 and Figure 3 shown, the outfitting frame 1 includes a frame body 101 and a platform and passage structure 102 installed on the frame body 101. Each system equipment is installed on the side of the platform and passage structure 102.

[0037] In one embodiment, as Figure 1 shown, the main engine cylinder liner water cooler 3 is arranged at the central position of the outfitting frame 1, and other system equipment is distributed around the main engine cylinder liner water cooler 3. Preferably, the water maker 2 is arranged in the inlet direction of the main engine cylinder liner water cooler 3, and the main engine cylinder liner water pump 4, the main engine cylinder liner water preheating pump 5, the main engine cylinder liner water preheater 6, and the chemical dosing equipment 7 are arranged in the outlet direction of the main engine cylinder liner water cooler 3 or close to its outlet direction to further optimize the layout and reduce the pipeline length.

[0038] In one embodiment, as Figure 1 and Figure 2 shown, there are no obstacles in the upper space of the main engine cylinder liner water pump 4, the main engine cylinder liner water preheating pump 5, and the main engine cylinder liner auxiliary pump 12, that is, no outfitting parts such as pipe systems, electrical systems, and iron outfitting that hinder equipment maintenance are provided above the main engine cylinder liner water pump 4, the main engine cylinder liner water preheating pump 5, and the main engine cylinder liner auxiliary pump 12. And, as Figure 6 shown, after the skid-mounted high-temperature fresh water cooling device of the present application is installed on the ship, only transfer lifting lugs 13 are provided on the cabin top wall above the main engine cylinder liner water pump 4, the main engine cylinder liner water preheating pump 5, and the main engine cylinder liner auxiliary pump 12 to facilitate hoisting and maintenance.

[0039] In this embodiment, as Figure 4As shown in the figure, the skid-mounted high-temperature fresh water cooling device for ships further includes a control module 15, which is installed on the outfitting frame 1 and located on the side of the platform and passage structure 102, and the height is within the range of 1400-1600 mm. The control module 15 is used to receive the signals of various sensors in the skid-mounted high-temperature fresh water cooling device for ships and control the actions of various devices and valves. At the same time, the control module 15 is provided with an external line interface for accessing the control system of the ship.

[0040] In one embodiment, as Figure 5 shown, the skid-mounted high-temperature fresh water cooling device for ships may further include a strengthening structure 14, and the main engine jacket water pump 4, the main engine jacket water preheating pump 5, the main engine jacket auxiliary pump 12, etc. are connected to the outfitting frame 1 through a plurality of strengthening structures 14.

[0041] It should be noted that switch valves (which can be manual valves, preferably electric switch valves) are provided at the inlets and outlets of devices such as the water maker 2, the main engine jacket water cooler 3, the main engine jacket water pump 4, the main engine jacket water preheating pump 5, the main engine jacket auxiliary pump 12, the main engine jacket water preheater 6, and the chemical dosing equipment 7.

[0042] The skid-mounted high-temperature fresh water cooling device of the present application can be installed and debugged independently of the construction of the ship hull structure. First, assemble according to the mechanical structure and circuit structure of the skid-mounted high-temperature fresh water cooling device for ships. Before the test, it is necessary to check and confirm the integrity and tightness of the installation of the pipe system, check that the control box and wiring are installed completely and powered on, and check the normality of the individual functions of each device. Open the system make-up water valve (for example, via the main inlet 81 or the first external interface 83) and inject an appropriate amount of fresh water into the system until the system is full. An exhaust valve is provided at the highest point of the pipeline of this device. After the make-up water is completed, close the make-up water valve, open the exhaust valve at the highest point of the system, and discharge the air in the device. When no gas is discharged from the exhaust valve, close the exhaust valve. Power on the main distribution board control box of the main engine jacket water pump 4 and the main engine jacket auxiliary pump 12, and power on and debug the main engine jacket water preheating pump 5. Start the water pump, and the high-temperature water pressure water enters the main engine 9, and observe whether the water pump runs smoothly. Check the inlet and outlet pressures of the water pump to ensure that they are within the normal range; adjust the water pump speed or valve opening to make the system flow rate and pressure meet the design requirements; according to the system requirements, set the cooling water temperature control range. Adjust the temperature control device (temperature control valve, temperature sensor, etc.) to keep the system water temperature within the set range. Observe and record the change of the system water temperature under different loads and working conditions to ensure the reliability of the temperature control; after the system runs stably for a certain period of time, check whether there is any leakage at the connection points of each component of the system. After there is no problem, hoist the whole device to the predetermined position of the ship, connect the reserved interfaces of the system pipeline 8 to the corresponding equipment on the ship, and connect the reserved electrical interfaces of the control module 15 to the ship's line to complete the debugging and installation of the skid-mounted high-temperature fresh water cooling device for ships.

[0043] As Figure 7 shown, an embodiment of the present application further provides a high-temperature fresh water cooling system for a ship, including the aforementioned skid-mounted high-temperature fresh water cooling device for a ship, which is installed on the ship; it also includes a main engine 9, a high-temperature expansion water tank 10, and a clean water tank 11 installed on the ship; the outlet of the cylinder jacket of the main engine 9 is connected to the main inlet 81 of the system pipeline 8 of the skid-mounted high-temperature fresh water cooling device for a ship, the inlet of the cylinder jacket of the main engine 9 is connected to the main outlet 82 of the system pipeline 8 of the skid-mounted high-temperature fresh water cooling device for a ship, the high-temperature expansion water tank 10 is connected to the first external interface 83 of the system pipeline 8 of the skid-mounted high-temperature fresh water cooling device for a ship, and the clean water tank 11 is connected to the second external interface 84 of the system pipeline 8 of the skid-mounted high-temperature fresh water cooling device for a ship.

[0044] A brief description of the operation process of the high-temperature fresh water cooling system for a ship in the present application is as follows: During the normal navigation of the ship, high-temperature fresh water is transported through the pipeline to the inlet of the cylinder jacket of the main engine 9, and then flows out from the water outlet of the cylinder jacket of the main engine 9. Under the control of the temperature control valve, a part of the high-temperature fresh water flows through the water maker 2 via pipeline B. The water maker 2 uses the heat of the high-temperature fresh water to exchange heat with seawater to produce fresh water. After flowing out of the water maker 2 and converging with a part flowing through pipeline A, it enters the main engine cylinder jacket water cooler 3, and after cooling, it passes through the main engine cylinder jacket water pump 4 and / or the main engine cylinder jacket auxiliary pump 12 and the dosing device 7 for cyclic action, and then passes through the main engine cylinder jacket water pump 4 and / or the main engine cylinder jacket auxiliary pump 12 again, and a part is transported to the inlet of the cylinder jacket of the main engine 9.

[0045] During the berthing and anchoring of the ship, the high-temperature fresh water is used for warming the cylinder of the main engine 9. Under the action of the temperature control valve, the high-temperature fresh water does not enter the main engine cylinder jacket water cooler 3. After being transported through the pipeline to the main engine cylinder jacket water preheating pump 5, a part is transported to the dosing device 7 to participate in the dosing cycle, and a part is heated by the main engine cylinder jacket water preheater 6 and then transported to the inlet of the cylinder jacket water of the main engine 9 for cyclic warming of the cylinder.

[0046] The above are only the preferred embodiments of the present application and are not used to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A skid-type ship high-temperature fresh water cooling device, characterized in that: It comprises an outfitting frame (1) and system equipment integrated and installed on the outfitting frame (1), and the outfitting frame (1) is provided with a hoisting part; The system equipment at least comprises a fresh water generator (2), a main engine cylinder jacket water cooler (3), a main engine cylinder jacket water pump (4), a main engine cylinder jacket water preheating pump (5), a main engine cylinder jacket water preheater (6), a dosing device (7) and a system pipeline (8); The system pipeline (8) is connected to each of the system devices, and the system pipeline (8) includes a main inlet (81) and a main outlet (82), and a first external interface (83) and a second external interface (84) are provided between the main inlet (81) and the main outlet (82); the main inlet (81) is used to connect to the cylinder liner outlet of the main engine (9), and the main outlet (82) is used to connect to the cylinder liner inlet of the main engine (9), the first external interface (83) is used to connect to a high-temperature expansion water tank (10), and the second external interface (84) is used to connect to a clean water tank (11).

2. The skid-type ship high-temperature fresh water cooling device according to claim 1 is characterized in that: A first parallel section and a second parallel section are sequentially arranged between the main inlet (81) and the main outlet (82) of the system pipeline (8); The second external interface (84) and the first external interface (83) are sequentially arranged between the first parallel section and the second parallel section; The main engine cylinder jacket water cooler (3) is arranged between the second external interface (84) and the first parallel section; the first parallel section comprises an A pipeline and a B pipeline, and the B pipeline is provided with the fresh water generator (2); The second parallel section comprises a C pipeline and a D pipeline, the main engine cylinder jacket water preheating pump (5) and the main engine cylinder jacket water preheater (6) are arranged in sequence on the C pipeline, and the main engine cylinder jacket water pump (4) is arranged on the D pipeline; The outlet of the main engine cylinder jacket water preheating pump (5) and the outlet of the main engine cylinder jacket water pump (4) are both connected to the inlet of the dosing device (7), and the outlet of the dosing device (7) is connected between the first parallel section and the second parallel section.

3. The skid-type ship high-temperature fresh water cooling device according to claim 2 is characterized in that: The system equipment on the outfitting frame (1) further includes a main engine cylinder liner auxiliary pump (12); The second parallel section further comprises an E pipeline, the inlet of the E pipeline is connected between the first parallel section and the second parallel section, and the E pipeline is divided into a first outlet (121) and a second outlet (122); the first outlet (121) is connected to the inlet of the main engine cylinder jacket water preheater (6); the second outlet (122) is connected to the outlet of the main engine cylinder jacket water pump (4), and the connection position is upstream of the inlet connection position of the dosing device (7); The main engine cylinder sleeve auxiliary pump (12) is arranged on the E pipeline.

4. The skid-type ship high-temperature fresh water cooling device according to any one of claims 1 to 3, characterized in that: The outfitting frame (1) comprises a frame body (101) and a platform and channel structure (102) installed on the frame body (101), and each of the system devices is installed on the side of the platform and channel structure (102).

5. The skid-type ship high-temperature fresh water cooling device according to any one of claims 1 to 3, characterized in that: The main engine cylinder jacket water cooler (3) is arranged at the center of the outfitting frame (1), and the other system equipment is distributed around the main engine cylinder jacket water cooler (3).

6. The skid-type ship high-temperature fresh water cooling device according to claim 5, characterized in that: The fresh water generator (2) is arranged at the inlet direction of the main engine cylinder jacket water cooler (3).

7. The skid-type ship high-temperature fresh water cooling device according to claim 5, characterized in that: The main engine cylinder jacket water pump (4), the main engine cylinder jacket water preheating pump (5), the main engine cylinder jacket water preheater (6), and the dosing device (7) are arranged in the outlet direction of the main engine cylinder jacket water cooler (3) or close to the outlet direction thereof.

8. The skid-type ship high-temperature fresh water cooling device according to claim 2, characterized in that: There is no obstruction in the space above the main engine cylinder jacket water pump (4), the main engine cylinder jacket water preheating pump (5) and the main engine cylinder jacket auxiliary pump (12).

9. The skid-type ship high-temperature fresh water cooling device according to claim 4, characterized in that: It also includes a control module (15), which is installed on the outfitting frame (1) and located on the side of the platform and channel structure (102), and has a height within the range of 1400 to 1600 mm.

10. A ship high temperature fresh water cooling system, characterized in that: The invention comprises a skid-type ship high-temperature fresh water cooling device as claimed in any one of claims 1 to 9, which is installed on a ship; and further comprises a main engine (9), a high-temperature expansion water tank (10) and a clean water tank (11) installed on the ship; the main engine (9) cylinder liner outlet is connected to the main inlet (81) of the system pipeline (8) of the skid-type ship high-temperature fresh water cooling device, the main engine (9) cylinder liner inlet is connected to the main outlet (82) of the system pipeline (8) of the skid-type ship high-temperature fresh water cooling device, the high-temperature expansion water tank (10) is connected to the first external interface (83) of the system pipeline (8) of the skid-type ship high-temperature fresh water cooling device, and the clean water tank (11) is connected to the second external interface (84) of the system pipeline (8) of the skid-type ship high-temperature fresh water cooling device.

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