A marine heat exchanger with recyclable cooling water

CN224435148UActive Publication Date: 2026-06-30NANTONG ELITE MARINE EQUIP & ENG

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANTONG ELITE MARINE EQUIP & ENG
Filing Date
2025-08-14
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

Existing ship heat exchangers require a large amount of cooling water during long-term use, resulting in low heat exchange efficiency and long coolant settling time, which affects the actual performance.

Method used

A marine heat exchanger with recyclable cooling water was designed. Cooling water is pumped to the heat exchanger body, and heat exchange is carried out using a combination of aluminum and copper tubes. Cooling fan and protective mechanism are used to improve heat dissipation efficiency. The cooled water is recycled back to the water tank for reuse.

Benefits of technology

It achieves efficient heat exchange and coolant recycling, improves the efficiency of the heat exchange device, and protects the cooling system through a protective mechanism, extending its service life.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224435148U_ABST
    Figure CN224435148U_ABST
Patent Text Reader

Abstract

This utility model discloses a marine heat exchanger with recyclable cooling water, relating to the field of marine heat exchangers. It includes a heat exchanger body with symmetrically fixed support plates on its outer side. A water tank and a water pump are respectively disposed between the support plates. An inlet and an outlet are respectively provided on the outer side of the heat exchanger body. The input end of the water pump is connected to the water tank via a water pipe, and the output end of the water pump is connected to the inlet of the heat exchanger body via a water pipe. Using this structure, the water pump, connected to the water tank at its input end, continuously supplies cooling water to the inlet of the heat exchanger body. After carrying away heat from the heat exchanger body, the cooling water is discharged through the outlet to a cooling mechanism for further cooling. The cooling mechanism achieves efficient heat dissipation during the cooling water supply process. Simultaneously, the cooled water is recovered to the water tank for recycling, thus ensuring the efficiency of the heat exchange device to a certain extent.
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Description

Technical Field

[0001] This utility model belongs to the field of marine heat exchangers, and specifically relates to a marine heat exchanger with recyclable cooling water. Background Technology

[0002] Marine heat exchangers are the core equipment in a ship's thermal management system. They are mainly used to achieve heat exchange between different media and ensure the efficient operation of the power plant and auxiliary systems. Currently, there are shell-and-tube, plate, or coaxial heat exchangers. They are mainly devices that transfer part of the heat of hot fluids to cold fluids. They are also called heat exchangers. When ships are operating at sea, they need to ensure the long-term efficient operation of their internal machinery, which requires heat dissipation equipment such as radiators for cooling.

[0003] Since most existing ship heat exchange systems require a large amount of cooling water for heat exchange and cooling, and the coolant takes a long time to settle, the heat exchange efficiency of the heat exchange devices is low during long-term use, which has certain adverse effects on actual use. Therefore, technical improvements are needed. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a marine heat exchanger with recyclable cooling water to solve the problems mentioned in the background art.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A marine heat exchanger with recyclable cooling water includes a heat exchanger body, with support plates symmetrically fixed on the outer side of the heat exchanger body. A water tank and a water pump are respectively arranged between the support plates. An inlet and an outlet are respectively provided on the outer side of the heat exchanger body. The input end of the water pump is connected to the water tank through a water pipe, and the output end of the water pump is connected to the inlet of the heat exchanger body through a water pipe. A cooling mechanism is provided between the support plates.

[0007] The cooling mechanism includes an aluminum tube, the ends of which are fixed to the inner side of a support plate. A copper tube is fixed to the inner side of the aluminum tube, and a heat dissipation groove is formed on the outer side of the copper tube. A connecting pipe is fixed to the end of the copper tube. The connecting pipe at one end of the copper tube is connected to the liquid outlet of the heat exchanger body, and the connecting pipe at the other end of the copper tube is connected to a water tank. An installation groove is formed at one end of the aluminum tube, and a cooling fan is fixed in the installation groove. A protective mechanism is provided at the end of the aluminum tube.

[0008] The protective mechanism includes a mounting ring, which is rotatably connected to the opening of the aluminum tube. A ventilation mesh is fixed inside the mounting ring, an iron block is fixed outside the mounting ring, and a magnet is fixed outside the aluminum tube. The iron block and the magnet are movably connected.

[0009] As a preferred technical solution, a pull ring is welded to the outer side of the iron block, and the pull ring is located in the middle of the iron block.

[0010] As a preferred technical solution, the inner side of the support plate is provided with a through hole, and one end of the aluminum tube is fixed in the through hole.

[0011] As a preferred technical solution, the inner side of the mounting groove is provided with a positioning groove at equal angles, and the cooling fan is fixed in the positioning groove.

[0012] As a preferred technical solution, the copper tube is spiral in shape, and one end of the connecting tube passes through the wall of the aluminum tube and is connected to the end of the copper tube.

[0013] As a preferred technical solution, the water tank is provided with a supply port and a water level sensor on its outer side, and the sensing end of the water level sensor extends into the water tank.

[0014] As a preferred technical solution, a connecting plate is welded between the support plates, and the water tank and water pump are both fixed to the upper end of the connecting plate.

[0015] As a preferred technical solution, a hook is welded to the outside of one of the support plates at the lower end of the heat exchanger body, and a cleaning brush is attached to the outside of the hook.

[0016] In summary, the present invention has the following main advantages:

[0017] First, a water pump is connected to a water tank through the input end, and its output end is continuously supplied to the liquid inlet of the heat exchanger body. The cooling water carries away the heat inside the heat exchanger body and is discharged through the liquid outlet to the cooling mechanism for cooling. The cooling mechanism can achieve efficient heat dissipation during the cooling liquid transportation process. At the same time, the cooled liquid is recovered into the water tank after heat dissipation and can be recycled, thus ensuring the efficiency of the heat exchange device to a certain extent.

[0018] Secondly, by adding a protective mechanism to the cooling mechanism in addition to the cooling mechanism's function of dissipating heat from the coolant, the cooling mechanism can be protected to a certain extent, thereby extending its service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the aluminum tube of this utility model;

[0021] Figure 3 This is the utility model Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 This is a schematic diagram of the copper tube structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the heat dissipation groove structure of this utility model.

[0024] Reference numerals in the attached drawings: 1. Heat exchanger body; 2. Support plate; 3. Liquid inlet; 4. Liquid outlet; 5. Cooling mechanism; 501. Aluminum tube; 502. Connecting pipe; 503. Mounting slot; 504. Cooling fan; 505. Copper tube; 506. Heat dissipation slot; 6. Water tank; 7. Water pump; 8. Water level sensor; 9. Replenishment port; 10. Protective mechanism; 101. Mounting ring; 102. Ventilation mesh; 103. Iron block; 104. Magnet; 11. Pull ring; 12. Connecting plate; 13. Hook; 14. Cleaning brush; 15. Positioning slot; 16. Through hole. Detailed Implementation

[0025] refer to Figures 1 to 5 This embodiment describes a marine heat exchanger with recyclable cooling water, comprising a heat exchanger body 1, with support plates symmetrically fixed to the outer side of the heat exchanger body 1. A water tank 6 and a water pump 7 are respectively arranged between the support plates 2. An inlet 3 and an outlet 4 are respectively provided on the outer side of the heat exchanger body 1. The input end of the water pump 7 is connected to the water tank 6 through a water pipe, and the output end of the water pump 7 is connected to the inlet 3 of the heat exchanger body 1 through a water pipe. A cooling mechanism 5 is arranged between the support plates 2. The water pump 7 is connected to the water tank 6 through its input end, so that its output end continuously delivers cooling water to the inlet 3 of the heat exchanger body 1. After the cooling water carries away the heat inside the heat exchanger body 1, it is discharged through the outlet 4 to the cooling mechanism 5 for cooling. The cooling mechanism 5 dissipates heat during the cooling water delivery process. At the same time, the cooled water is recovered into the water tank 6 and can be recycled for reuse, ensuring the effectiveness of the cooling water. The heat exchanger body 1 is a known prior art product, and its internal structure has been disclosed, so it will not be described in detail here.

[0026] The cooling mechanism 5 includes an aluminum tube 501, the ends of which are fixed to the inner side of the support plate 2. A copper tube 505 is fixed to the inner side of the aluminum tube 501, and a heat dissipation groove 506 is formed on the outer side of the copper tube 505. A connecting pipe 502 is fixed to the end of the copper tube 505. One end of the connecting pipe 502 of the copper tube 505 is connected to the liquid outlet 4 of the heat exchanger body 1, and the other end of the connecting pipe 502 of the copper tube 505 is connected to the water tank 6. One end of the aluminum tube 501 has a mounting groove 503, and a cooling fan 504 is fixed in the mounting groove 503. The specific model of the cooling fan 504 is 22060B3H, with a voltage of 380V, a current of 0.16A, and a power of [missing information]. A 40W circular axial fan with protective mechanisms 10 at the ends of aluminum tubes 501. When the coolant carrying heat in the heat exchanger body 1 is transported through the pipeline to the copper tubes 505 inside the aluminum tubes 501, the heat is concentrated on the copper tubes 505 through heat conduction. Then, the cooling fan 504 blows air through one end of the aluminum tubes 501. The cooling airflow flows quickly through the pipeline and can carry away the heat on the copper tubes 505. The spiral copper tubes 505 can not only extend the heat conduction and heat dissipation time, but also the heat dissipation grooves 506 added to the copper tubes 505 can expand the heat dissipation area and improve the heat dissipation effect of the coolant, thereby ensuring the use of the coolant.

[0027] The protective mechanism 10 includes a mounting ring 101, which is rotatably connected to the opening of the aluminum tube 501. A ventilation mesh 102 is fixed inside the mounting ring 101, and an iron block 103 is fixed to the outside of the mounting ring 101. A magnet 104 is fixed to the outside of the aluminum tube 501. The iron block 103 and the magnet 104 are movably connected. By rotatably installing the mounting ring 101 with the ventilation mesh 102 at the opening of the aluminum tube 501, and by attracting and fixing the mounting ring 101 to the magnet 104 on the aluminum tube 501 through the external iron block 103, the ventilation mesh 102 can play a protective role at the openings of both ends of the aluminum tube 501, preventing rats on the ship from crawling into the aluminum tube 501 and damaging the cooling fan 504.

[0028] refer to Figure 1 A pull ring 11 is welded to the outside of the iron block 103. The pull ring 11 is located in the middle of the iron block 103. Through the pull ring 11 on the iron block 103, the installation ring 101 can be quickly opened from the opening of the aluminum tube 501, which facilitates maintenance operations on the internal components of the aluminum tube 501.

[0029] refer to Figure 3 The inner side of the support plate 2 is provided with a through hole 16. One end of the aluminum tube 501 is fixed in the through hole 16. The aluminum tube 501 can be conveniently installed on the support plate 2 through the through hole 16 in the support plate 2.

[0030] refer to Figure 3The mounting slot 503 has a positioning slot 15 at equal angles on its inner side. The cooling fan 504 is fixed in the positioning slot 15. The positioning slot 15 at the mounting slot 503 can be used to conveniently position and install the cooling fan 504.

[0031] refer to Figure 4 The copper tube 505 is spiral in shape. One end of the connecting tube 502 passes through the wall of the aluminum tube 501 and connects to the end of the copper tube 505. By using the spiral copper tube 505, the heat dissipation and transportation distance of the coolant can be extended, ensuring the cooling of the coolant.

[0032] refer to Figure 1 The water tank 6 is equipped with a water inlet 9 and a water level sensor 8 on its outer side. The sensing end of the water level sensor 8 extends into the water tank 6. Since the water in the water tank 6 will also be lost to a certain extent during use, the water level sensor 8 and the water inlet 9 can be connected to an external pipeline. When the water level in the water tank 6 reaches the predetermined critical point, timely replenishment can be carried out. The water inlet 9 is also equipped with a filter structure, which can filter out impurities in the coolant and prevent clogging of the pipeline.

[0033] refer to Figure 1 A connecting plate 12 is welded between the support plates 2. The water tank 6 and the water pump 7 are both fixed to the upper end of the connecting plate 12. The connecting plate 12 can easily reinforce the support plates 2 and also facilitate the installation of the water tank 6 and the water pump 7. In addition, a control module is provided on one of the support plates 2 on the outside of the heat exchanger body 1 to facilitate the control of the cooling fan 504, the water pump 7, the water level sensor 8, and the external supply pump.

[0034] refer to Figure 1 A hook 13 is welded to the outside of one of the support plates 2 at the lower end of the heat exchanger body 1. A cleaning brush 14 is attached to the outside of the hook 13. The cleaning brush 14 at the hook 13 allows staff to easily clean and unclog the ventilation net 102 of the protective mechanism 10 on a daily basis.

[0035] Operating principle and advantages: During operation, the water pump 7 is connected to the water tank 6 through the input end, and its output end is continuously supplied to the liquid inlet 3 of the heat exchanger body 1. The cooling water carries away the heat inside the heat exchanger body 1 and is discharged through the liquid outlet 4. After entering the copper tube 505 inside the aluminum tube 501, the heat is concentrated on the copper tube 505 through heat conduction. Then, the cooling fan 504 blows air through one end of the aluminum tube 501. The cooling airflow flows quickly through the pipe and can carry away the heat on the copper tube 505. The spiral copper tube 505 can not only extend the heat conduction and heat dissipation time, but also the heat dissipation groove 506 added to the copper tube 505 can expand the heat dissipation area and further improve the heat dissipation effect of the coolant.

[0036] During use, by rotating and installing the mounting ring 101 with ventilation mesh 102 at the opening of the aluminum tube 501, and by the external iron block 103 and the magnet 104 on the aluminum tube 501, the ventilation mesh 102 can play a protective role at the openings at both ends of the aluminum tube 501, preventing rats on the ship from crawling into the aluminum tube 501 and damaging the cooling fan 504.

Claims

1. A heat exchanger for a ship, in which cooling water is recirculated, characterized in that, The device includes a heat exchanger body (1), with support plates (2) symmetrically fixed on the outer side of the heat exchanger body (1). A water tank (6) and a water pump (7) are respectively provided between the support plates (2). An inlet (3) and an outlet (4) are respectively provided on the outer side of the heat exchanger body (1). The input end of the water pump (7) is connected to the water tank (6) through a water pipe, and the output end of the water pump (7) is connected to the inlet (3) of the heat exchanger body (1) through a water pipe. A cooling mechanism (5) is provided between the support plates (2). The cooling mechanism (5) includes an aluminum tube (501), the ends of which are fixed to the inside of the support plate (2). A copper tube (505) is fixed to the inside of the aluminum tube (501). A heat dissipation groove (506) is opened on the outside of the copper tube (505). A connecting pipe (502) is fixed to the end of the copper tube (505). The connecting pipe (502) at one end of the copper tube (505) is connected to the liquid outlet (4) of the heat exchanger body (1). The connecting pipe (502) at the other end of the copper tube (505) is connected to the water tank (6). An installation groove (503) is opened at one end of the aluminum tube (501). A cooling fan (504) is fixed in the installation groove (503). A protective mechanism (10) is provided at the end of the aluminum tube (501). The protective mechanism (10) includes a mounting ring (101), which is rotatably connected to the opening of the aluminum tube (501). A ventilation mesh (102) is fixed inside the mounting ring (101), and an iron block (103) is fixed outside the mounting ring (101). A magnet (104) is fixed outside the aluminum tube (501), and the iron block (103) and the magnet (104) are movably connected.

2. The heat exchanger according to claim 1, wherein: A pull ring (11) is welded to the outside of the iron block (103), and the pull ring (11) is located in the middle of the iron block (103).

3. The heat exchanger of claim 1, wherein: The support plate (2) has a through hole (16) on its inner side, and one end of the aluminum tube (501) is fixed in the through hole (16).

4. The heat exchanger of claim 1, wherein: The mounting groove (503) has a positioning groove (15) at equal angles on its inner side, and the cooling fan (504) is fixed in the positioning groove (15).

5. The heat exchanger of claim 1, wherein: The copper tube (505) is spiral in shape, and one end of the connecting tube (502) passes through the wall of the aluminum tube (501) and is connected to the end of the copper tube (505).

6. The heat exchanger of claim 1, wherein: The water tank (6) is provided with a supply port (9) and a water level sensor (8) on its outer side, and the sensing end of the water level sensor (8) extends into the water tank (6).

7. The heat exchanger of claim 1, wherein: A connecting plate (12) is welded between the support plates (2), and the water tank (6) and the water pump (7) are both fixed to the upper end of the connecting plate (12).

8. The heat exchanger of claim 1, wherein: A hook (13) is welded to the outside of one of the support plates (2) at the lower end of the heat exchanger body (1), and a cleaning brush (14) is attached to the outside of the hook (13).