Ship engine protection device

By adopting a water-cooling system and filtration circulation design in the marine engine protection device, the problems of low cooling efficiency and high energy consumption of existing devices have been solved, achieving efficient engine cooling and improved safety.

CN224184481UActive Publication Date: 2026-05-01天津弘盛科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
天津弘盛科技有限公司
Filing Date
2025-05-14
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing marine engine protection devices have low cooling efficiency and high energy consumption, which cannot effectively cope with the challenges of complex working environments and affect the normal operation and safety of the engine.

Method used

A protective device for marine engines was designed. By forming a protective space inside the protective components, heat exchange tubes are used to absorb engine heat, which is then cooled by a water cooling system. The water is filtered and circulated through filter elements and pumping elements, thereby improving the cooling efficiency.

Benefits of technology

It improved the engine's cooling efficiency, extended its service life, reduced energy consumption, and enhanced the unit's continuous operating capacity and personnel's emergency response capabilities.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of engine protection devices, and discloses a ship engine protection device which comprises a protection component, a protection space for containing transformer oil and a ship engine is formed in the protection component, a heat exchange pipe is installed in the protection space, and the liquid inlet end and the liquid outlet end of the heat exchange pipe extend out of the protection space. A filtering piece used for filtering water is installed at the liquid inlet end of the heat exchange pipe and located below the horizontal plane, the liquid outlet end of the heat exchange pipe is fixedly connected with a water pumping piece, and the ship engine is located above the heat exchange pipe. The engine is protected through the protection space in the protection component, transformer oil is contained in the protection space, water near a ship is sucked through the heat exchange pipe, the transformer oil absorbs heat of the engine, the water in the heat exchange pipe absorbs heat of the transformer oil, then the engine is assisted to be cooled, and wind power cooling is not needed; the cooling efficiency of the engine is improved and the service life of the engine is prolonged.
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Description

Technical Field

[0001] This utility model belongs to the technical field of engine protection devices, specifically relating to a marine engine protection device. Background Technology

[0002] Marine engines, as the primary power source for ships, offer advantages such as high thermal efficiency, good economy, and easy starting, leading to their widespread use in the shipbuilding industry. However, with the continuous development of the shipbuilding industry, the performance requirements for marine engines are becoming increasingly stringent, particularly in terms of safety and stability.

[0003] Existing marine engines often face various challenges during operation due to the complex and variable working environment, such as high temperatures, vibration, and corrosion. These challenges can not only affect the normal operation of the engine but also cause damage or even lead to safety accidents.

[0004] To address these issues, there are already some marine engine protection devices on the market that cool down the engine and keep it in a stable operating state. However, most of the existing devices are wind-cooled, which is not only inefficient but also wastes a lot of energy. Utility Model Content

[0005] The purpose of this invention is to provide a protective device for ship engines to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a marine engine protection device, comprising a protective component, wherein a protective space is formed inside the protective component to accommodate transformer oil and a marine engine, a heat exchange tube is installed inside the protective space, the inlet end and outlet end of the heat exchange tube both extend to the outside of the protective space, and a filter element for filtering water is installed at the inlet end of the heat exchange tube, the filter element being below the horizontal plane, a water pumping component is fixedly connected to the outlet end of the heat exchange tube, and the marine engine is located above the heat exchange tube.

[0007] Preferably, the filter element includes a filter housing, one side of which is open to form a water inlet, and the other side is fixedly connected to a water supply hose communicating with a heat exchange tube. A filter screen is fixedly connected inside the water inlet.

[0008] Preferably, a rotating roller is rotatably connected inside the filter housing, and multiple scrapers are evenly distributed in a ring array on the circumference of the rotating roller.

[0009] Preferably, a brush is adhered to the side of the scraper facing the circumference of the filter shell.

[0010] Preferably, the pumping component includes a water pump, the outlet end of which is equipped with a water outlet pipe, and the inlet end of the water pump is fixedly connected to the outlet end of the heat exchange tube.

[0011] Preferably, the protective component includes a protective shell, the top of which is open to form a protective cavity, and a detachable cover plate is installed on the top of the protective shell, with a handle fixedly connected to the top of the cover plate.

[0012] Preferably, a fixing frame is fixedly connected to the outside of the protective shell, and a screw is screwed onto the fixing frame.

[0013] Preferably, the bottom of the protective shell is fixedly connected to an anti-slip block.

[0014] Preferably, a plurality of stirring rollers are rotatably connected inside the protective shell, and a motor is fixedly connected to the outside of the protective shell. The output end of the motor is connected to the stirring rollers, and the stirring rollers are positioned above the heat exchange tube.

[0015] Preferably, a perforated plate is fixedly connected inside the protective cavity, and the perforated plate is positioned above the stirring roller.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] (1) This utility model protects the engine by setting up a protective space inside the protective component, and the transformer oil is collected in the protective space and drawn into the water near the ship through the heat exchange tube. The transformer oil absorbs the heat of the engine, and the water inside the heat exchange tube absorbs the heat of the transformer oil, thereby assisting the engine to cool down. There is no need to use wind cooling, which improves the cooling efficiency of the engine and extends the service life of the engine. Cooling by water cooling does not waste a lot of energy.

[0018] (2) Based on the above-mentioned beneficial effects, when the present invention draws in water through the water inlet and filters it through the filter screen, the water impacts the scraper, causing the scraper and the rotating roller to rotate inside the filter shell, thereby allowing the scraper to continuously scrape the filter screen for cleaning, so that the device can continuously draw in water and improve the device's cooling efficiency for the engine. Attached Figure Description

[0019] Figure 1 This is one of the perspective views of this utility model;

[0020] Figure 2 This is a second perspective view of the present utility model;

[0021] Figure 3 This is the third perspective view of the present utility model;

[0022] Figure 4 This is the fourth perspective view of the present utility model;

[0023] Figure 5 This is one of the perspective views of the present invention with the cover plate removed;

[0024] Figure 6 for Figure 5 A 3D view of the perforated plate after removal;

[0025] Figure 7 This is a perspective view of the heat exchange tube of this utility model connected to a water pump.

[0026] Figure 8 for Figure 5 Internal structure diagram;

[0027] Figure 9 This is a cross-sectional view of the filter element of this utility model;

[0028] In the diagram: 1. Protective shell; 2. Cover plate; 3. Handle; 4. Water outlet pipe; 5. Water pump; 6. Heat exchange pipe; 7. Screw; 8. Anti-slip block; 9. Motor; 10. Fixing frame; 11. Stirring roller; 12. Filter element; 121. Rotating roller; 122. Filter shell; 123. Filter screen; 124. Water inlet; 125. Scraper; 126. Water delivery hose; 13. Protective cavity; 14. Perforated plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-9 As shown, this utility model provides the following technical solution: a marine engine protection device, including a protective component, the protective component forming a protective space to accommodate transformer oil and a marine engine, a heat exchange tube 6 installed inside the protective space, the inlet and outlet ends of the heat exchange tube 6 extending to the outside of the protective space, and a filter element 12 for filtering water installed at the inlet end of the heat exchange tube 6, the filter element 12 being below the horizontal plane, a water pumping component fixedly connected to the outlet end of the heat exchange tube 6, and the marine engine being located above the heat exchange tube 6.

[0031] In this embodiment, before personnel need to use the device, the protective component is fixed in the required position. After the protective component is fixed, transformer oil is injected into the protective space inside the protective component. After the transformer oil is injected, the ship engine to be protected is placed inside the protective space, immersing the ship engine in the transformer oil, with the engine's air inlet and outlet located outside the protective component. The ship engine is then connected to the ship's transmission system. When the ship engine is running, the filter element 12 is placed in the water, below the water surface, while the water outlet of the pump is positioned above the water surface. When the ship engine is running, the pump creates negative pressure inside the heat exchange tube 6, causing the filter element 12 to generate suction to draw water from the water area and filter it. When component 12 draws in water, it filters the water to prevent it from entering the heat exchange tube 6. When water does enter the heat exchange tube 6, it absorbs the heat generated by the ship's engine through the transformer oil. The water inside the heat exchange tube 6 exchanges heat with the transformer oil, thereby reducing the temperature of the transformer oil. When the temperature of the water inside the heat exchange tube 6 rises, it continues to flow and is finally discharged into the waters where the ship is located through the outlet of the pumping unit. The ship continuously draws in water to cool the transformer oil while moving, improving the cooling efficiency of the ship's engine. Since engine failure is inevitable after long-term operation, personnel need to regularly inspect the device and conduct emergency training to simulate engine and device failure scenarios to improve personnel's response capabilities.

[0032] Specifically, in one embodiment, regarding the filter element 12 described above:

[0033] like Figures 1-7 , Figure 9 As shown, the filter element 12 includes a filter housing 122, one side of which is open to form a water inlet 124, and the other side is fixedly connected to a water supply hose 126 that communicates with the heat exchange tube 6. A filter screen 123 is fixedly connected inside the water inlet 124.

[0034] In this embodiment, when the heat exchange tube 6 draws in water, it creates a negative pressure inside the filter shell 122, which in turn allows the water inlet 124 to draw in water near the ship. When the water enters through the water inlet 124, it is filtered by the filter screen 123 to prevent impurities in the water from entering the interior of the filter shell 122.

[0035] In addition, in this utility model, in order to clean the filter 123, such as Figure 9 As shown, a rotating roller 121 is rotatably connected inside the filter housing 122, and multiple scrapers 125 are evenly distributed in a ring array on the circumference of the rotating roller 121.

[0036] In this embodiment, when water enters the filter housing 122 through the water inlet 124, the water pushes the scraper 125, causing the scraper 125 and the rotating roller 121 to rotate inside the filter housing 122. This allows the scraper 125 to scrape the inside of the filter screen 123, thereby cleaning the filter screen 123 and allowing the water inlet 124 to continuously draw water.

[0037] To further clean the filter screen 123, a brush is attached to the side of the scraper 125 facing the circumference of the filter housing 122. When the scraper 125 rotates and scrapes the filter screen 123, the brush is driven by the scraper 125 to clean the filter screen 123 simultaneously.

[0038] Specifically, in one embodiment, regarding the above-mentioned pumping component:

[0039] like Figures 1-7 As shown, the pumping unit includes a water pump 5, with a water outlet pipe 4 installed at the outlet end of the water pump 5, and the inlet end of the water pump 5 is fixedly connected to the outlet end of the heat exchange tube 6.

[0040] In this embodiment, when personnel need to extract water through the pumping device, the water pump 5 operates, thereby allowing the inlet end of the water pump 5 to extract water from inside the heat exchange tube 6, causing the heat exchange tube 6 to generate suction, which in turn allows the water inlet hole 124 to extract water.

[0041] Furthermore, in this utility model, regarding how the aforementioned protective components protect the ship's engine, such as... Figures 1-6 and Figure 8 As shown, the protective component includes a protective shell 1, the top of which is open to form a protective cavity 13, and a detachable cover plate 2 is installed on the top of the protective shell 1. A handle 3 is fixedly connected to the top of the cover plate 2.

[0042] In this embodiment, when personnel need to place the ship engine, the ship engine is placed in the protective cavity 13 inside the protective shell 1, the cover plate 2 is taken out by the handle 3, and the cover plate 2 is placed on top of the protective shell 1. The ship engine is protected by the protective shell 1 and the cover plate 2.

[0043] Regarding how to secure the protective case 1, as follows: Figures 1-4 As shown, a fixing frame 10 is fixedly connected to the outside of the protective shell 1, and a screw 7 is screwed onto the fixing frame 10;

[0044] The bottom of the protective shell 1 is fixedly connected with an anti-slip block 8.

[0045] In this embodiment, when personnel need to fix the protective shell 1, the protective shell 1 is placed at the location on the ship that needs to be fixed, and the screw 7 is inserted into the fixing frame 10 and rotated until the screw 7 enters the ship. The screw 7 abuts against the fixing frame 10, thereby fixing the protective shell 1.

[0046] When a ship's engine cools down using transformer oil, in order to improve the flow efficiency of the transformer oil within the protective cavity 13, such as... Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 8 As shown, multiple stirring rollers 11 are rotatably connected inside the protective shell 1, and a motor 9 is fixedly connected to the outside of the protective shell 1. The output end of the motor 9 is connected to the stirring rollers 11, and the stirring rollers 11 are located above the heat exchange tube 6.

[0047] A perforated plate 14 is fixedly connected inside the protective cavity 13, and the perforated plate 14 is positioned above the stirring roller 11.

[0048] In this embodiment, when the transformer oil inside the protective cavity 13 absorbs engine heat, the stirring roller 11 is driven by the motor 9 to rotate inside the protective cavity 13, thereby stirring the transformer oil inside the protective cavity 13, making the transformer oil flow more efficiently and improving the efficiency of the transformer oil in absorbing engine heat.

[0049] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A marine engine protection device, characterized in that: The system includes a protective component, which forms a protective space to accommodate transformer oil and a marine engine. A heat exchange tube (6) is installed inside the protective space. The inlet and outlet ends of the heat exchange tube (6) extend to the outside of the protective space. A filter element (12) for filtering water is installed at the inlet end of the heat exchange tube (6). The filter element (12) is located below the horizontal plane. A water pump is fixedly connected to the outlet end of the heat exchange tube (6). The marine engine is located above the heat exchange tube (6).

2. The marine engine protection device according to claim 1, characterized in that: The filter element (12) includes a filter shell (122), one side of which is open to form a water inlet hole (124), and the other side is fixedly connected to a water supply hose (126) communicating with the heat exchange tube (6). A filter screen (123) is fixedly connected inside the water inlet hole (124).

3. A marine engine protection device according to claim 2, characterized in that: The filter housing (122) is rotatably connected to a rotating roller (121), and the circumferential surface of the rotating roller (121) is provided with multiple scrapers (125) distributed at equal intervals in a ring array.

4. A marine engine protection device according to claim 3, characterized in that: A brush is attached to the side of the scraper (125) facing the periphery of the filter shell (122).

5. A marine engine protection device according to claim 2, characterized in that: The pumping component includes a water pump (5), the outlet end of which is equipped with a water outlet pipe (4), and the inlet end of the water pump (5) is fixedly connected to the outlet end of the heat exchange tube (6).

6. A marine engine protection device according to claim 1, characterized in that: The protective component includes a protective shell (1), the top of which is open to form a protective cavity (13), and a detachable cover plate (2) is installed on the top of the protective shell (1), and a handle (3) is fixedly connected to the top of the cover plate (2).

7. A marine engine protection device according to claim 6, characterized in that: A fixing frame (10) is fixedly connected to the outside of the protective shell (1), and a screw (7) is screwed onto the fixing frame (10).

8. A marine engine protection device according to claim 7, characterized in that: The bottom of the protective shell (1) is fixedly connected to an anti-slip block (8).

9. A marine engine protection device according to claim 6, characterized in that: The protective shell (1) has multiple stirring rollers (11) rotatably connected inside, and a motor (9) is fixedly connected to the outside of the protective shell (1). The output end of the motor (9) is connected to the stirring rollers (11), and the stirring rollers (11) are located above the heat exchange tube (6).

10. A marine engine protection device according to claim 9, characterized in that: A perforated plate (14) is fixedly connected inside the protective cavity (13), and the perforated plate (14) is located above the stirring roller (11).