Sea fresh water heat exchanger
By integrating a titanium alloy seawater-freshwater heat exchanger, the problems of large space occupation and seawater corrosion in traditional tank thermal management systems have been solved, achieving efficient cooling and corrosion resistance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI POWER HEAT EXCHANGER MFG
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional tank thermal management systems require separate configurations for engine coolant heat exchangers and transmission oil coolers, which occupy a large space and are subject to strong seawater corrosion, resulting in large equipment size, increased flow resistance, and increased power consumption.
Design a seawater and freshwater heat exchanger using titanium alloy material, integrating engine coolant and transmission oil cooling functions. The heat exchange efficiency is increased by a folded plate structure of titanium alloy seawater passage chamber and coolant partition plate, and heat dissipation is accelerated by a blower assembly.
It enables the simultaneous cooling of engine coolant and transmission oil in the same device, reducing the size and flow resistance of the device, reducing power consumption, and resisting seawater corrosion.
Smart Images
Figure CN224532818U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of seawater and freshwater heat exchangers, specifically a seawater and freshwater heat exchanger. Background Technology
[0002] Ships cannot fully approach the shore at sea; transport distances of tens of meters from the shore can only be achieved by tanks. Tank engines operate under overload conditions for even a minute, causing engine temperatures to rise. Seawater cooling is typically used. Traditional tank thermal management systems require separate engine coolant heat exchangers and transmission oil coolers, installed in parallel or series, occupying significant space. This split design results in equipment volume exceeding 30% of the power compartment, and the intersecting pipes increase flow resistance, raising water pump power consumption by 20%.
[0003] Secondly, seawater has a high Cl- corrosion rate (concentration of 19,000 mg / L), which easily corrodes heat exchangers. Utility Model Content
[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract, and the title, and such simplifications or omissions should not be used to limit the scope of this utility model.
[0005] 1. Technical problems to be solved:
[0006] To address the problems of traditional tank thermal management systems requiring separate engine coolant heat exchangers and transmission oil coolers, which occupy a large space and are subject to strong seawater corrosiveness, this utility model is proposed.
[0007] Therefore, the purpose of this utility model is to provide a seawater-freshwater heat exchanger, which has the beneficial effects of simultaneously cooling engine coolant and engine transmission oil with one set of equipment and reducing the damage caused by seawater corrosion.
[0008] 2. Technical Solution:
[0009] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution:
[0010] A seawater / freshwater heat exchanger, comprising:
[0011] The heat exchange assembly includes an outer titanium alloy frame, fixed legs symmetrically fixed to the bottom of the outer titanium alloy frame, a titanium alloy seawater passage chamber fixed to the middle of the inner wall of the outer titanium alloy frame, a coolant partition plate symmetrically fixed to the inner wall of the outer titanium alloy frame, a seawater inlet fixed to the top of the outer titanium alloy frame and connected to the titanium alloy seawater passage chamber, a seawater outlet fixed to the bottom of the outer titanium alloy frame and connected to the titanium alloy seawater passage chamber, a coolant inlet located at the top of the outer titanium alloy frame, a coolant outlet connected to the bottom of the outer titanium alloy frame, a transmission oil inlet located at the top of the outer titanium alloy frame, and a transmission oil outlet located at the bottom of the outer titanium alloy frame.
[0012] The coolant inlet and the coolant outlet are both connected to the area between the titanium alloy seawater passage chamber and the coolant partition plate.
[0013] The transmission oil inlet and the transmission oil outlet are both connected to the area between the coolant divider plate and the outer titanium alloy frame.
[0014] A blower assembly is disposed outside the outer titanium alloy frame to blow air onto the outer titanium alloy frame.
[0015] As a preferred embodiment of the seawater and freshwater heat exchanger described in this utility model, the blowing assembly includes connecting rods symmetrically fixed to the outer wall of the outer titanium alloy frame, a connecting base plate fixed to the connecting rods, and a fan mounted on the connecting base plate.
[0016] As a preferred embodiment of the seawater and freshwater heat exchanger described in this utility model, the top of the outer titanium alloy frame is symmetrically and uniformly connected with distribution injection pipes, the distribution injection pipes are connected with distribution pipes, the two distribution pipes are connected with a first interconnecting pipe, and the first interconnecting pipe is connected with a coolant inlet.
[0017] As a preferred embodiment of the seawater and freshwater heat exchanger described in this utility model, the top of the outer titanium alloy frame is symmetrically and uniformly connected with a transmission oil injection pipe, the transmission oil injection pipe is connected to a second interconnecting pipe, and the transmission oil inlet is connected to the second interconnecting pipe.
[0018] As a preferred embodiment of the seawater and freshwater heat exchanger described in this utility model, heat dissipation fins are uniformly and symmetrically fixed on the outer wall of the outer titanium alloy frame.
[0019] As a preferred embodiment of the seawater heat exchanger described in this utility model, the titanium alloy seawater is configured as a folded plate through the outer wall of the tank.
[0020] As a preferred embodiment of the seawater heat exchanger described in this utility model, the outer wall of the coolant partition plate is configured as a folded plate, and the protrusion of the folded plate of the coolant partition plate is inserted into the groove of the folded plate of the titanium alloy seawater passage chamber.
[0021] 3. Beneficial effects:
[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0023] I. This type of seawater heat exchanger continuously injects seawater into a titanium alloy seawater passage chamber, and then injects engine coolant into the area between the titanium alloy seawater passage chamber and the coolant divider plate, allowing the seawater to cool the coolant; then, engine transmission oil is injected into the area between the coolant divider plate and the outer titanium alloy frame, allowing the cooled coolant to cool the transmission oil; thus, one set of equipment can simultaneously cool both engine coolant and engine transmission oil; and to accelerate heat exchange, the outer wall of the titanium alloy seawater passage chamber is designed as a folded plate; the outer wall of the coolant divider plate is also designed as a folded plate, with the protrusions of the folded plate of the coolant divider plate inserted into the grooves of the folded plate of the titanium alloy seawater passage chamber, which increases the contact area and thus increases the heat exchange efficiency;
[0024] Second, this type of seawater and freshwater heat exchanger uses titanium alloy as the material to resist seawater corrosion, thereby reducing the damage caused by seawater corrosion. Attached Figure Description
[0025] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0026] Figure 1 This is a schematic diagram of the overall structure of a seawater-freshwater heat exchanger according to the present invention.
[0027] Figure 2 This is a partial structural cross-sectional view of a seawater-freshwater heat exchanger according to this utility model;
[0028] Figure 3 This is a partial structural cross-sectional view of a seawater-freshwater heat exchanger according to the present invention;
[0029] Figure 4 This utility model relates to a seawater / freshwater heat exchanger. Figure 1 A magnified view of part A in the image;
[0030] Figure 5 This utility model relates to a seawater / freshwater heat exchanger. Figure 3A magnified view of part B in the image.
[0031] The following are the labeling instructions in the diagram: 100, heat exchange assembly; 110, outer titanium alloy frame; 110a, heat dissipation fins; 120, fixed support leg; 130, titanium alloy seawater passage chamber; 140, coolant partition plate; 150, seawater inlet; 150a, seawater outlet; 160, coolant inlet; 160a, distribution injection pipe; 160b, distribution pipe; 160c, first interconnecting pipe; 170, transmission oil inlet; 170a, transmission oil injection pipe; 170b, second interconnecting pipe; 200, air blowing assembly; 210, connecting rod; 220, connecting base plate; 230, fan. Detailed Implementation
[0032] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0033] Figures 1-5 The diagram shown is a structural schematic of one embodiment of the seawater-freshwater heat exchanger of this utility model. Please refer to [link / reference]. Figures 1-5 This utility model discloses a seawater and freshwater heat exchanger, the main body of which includes a heat exchange component 100 and a blower component 200.
[0034] The heat exchange assembly 100 includes an outer titanium alloy frame 110, heat dissipation fins 110a uniformly and symmetrically fixed on the outer wall of the outer titanium alloy frame 110, fixed support legs 120 symmetrically fixed at the bottom of the outer titanium alloy frame 110, a titanium alloy seawater passage chamber 130 fixed in the middle of the inner wall of the outer titanium alloy frame 110, a coolant partition plate 140 symmetrically fixed on the inner wall of the outer titanium alloy frame 110, a seawater inlet 150 fixed at the top of the outer titanium alloy frame 110 and connected to the titanium alloy seawater passage chamber 130, and a titanium alloy seawater passage chamber 130 fixed at the bottom of the outer titanium alloy frame 110 and connected to the titanium alloy seawater passage chamber 130. The seawater flows through the seawater outlet 150a of the tank 130, the coolant inlet 160 located at the top of the outer titanium alloy frame 110, the coolant outlet connected to the bottom of the outer titanium alloy frame 110, the transmission oil inlet 170 located at the top of the outer titanium alloy frame 110, and the transmission oil outlet located at the bottom of the outer titanium alloy frame 110; the engine coolant is a glycol-based coolant, such as 50% water + 50% ethylene glycol, rather than pure fresh water. In heat exchanger design, "fresh water channel" is a general term, and the engine coolant refers to the fresh water in a type of seawater-fresh water heat exchanger of this device.
[0035] The coolant inlet 160 and the coolant outlet are both connected in the area between the titanium alloy seawater passage chamber 130 and the coolant partition plate 140.
[0036] The transmission oil inlet 170 and the transmission oil outlet are both connected to the area between the coolant divider plate 140 and the outer titanium alloy frame 110.
[0037] The blower assembly 200 is disposed outside the outer titanium alloy frame 110 and blows air onto the outer titanium alloy frame 110. The blower assembly 200 includes connecting rods 210 symmetrically fixed on the outer wall of the outer titanium alloy frame 110, a connecting base plate 220 fixed on the connecting rods 210, and a fan 230 mounted on the connecting base plate 220.
[0038] Furthermore, to ensure rapid and uniform injection of engine coolant and engine transmission oil, specifically, the top of the outer titanium alloy frame 110 is symmetrically and uniformly connected with distribution injection pipes 160a, distribution pipes 160b are connected to the distribution injection pipes 160a, and a first interconnecting pipe 160c is connected to the two distribution pipes 160b. A coolant inlet 160 is connected to the first interconnecting pipe 160c. The top of the outer titanium alloy frame 110 is symmetrically and uniformly connected with distribution injection pipes 160a, and distribution pipes 160a are connected to the distribution injection pipes 160a. 0b. Two distribution pipes 160b are connected to a first interconnecting pipe 160c, and the first interconnecting pipe 160c is connected to a coolant inlet 160. Coolant is first injected into the coolant inlet 160, and the coolant gradually enters each distribution injection pipe 160a, so that the coolant can contact the outer wall of the titanium alloy seawater through the tank more evenly, accelerating the cooling of the coolant. Similarly, the engine transmission oil is also injected more evenly into the gap between the coolant dividing plate 140 and the outer titanium alloy frame 110 from the transmission oil injection pipe 170a.
[0039] Finally, to accelerate heat exchange, specifically, the outer wall of the titanium alloy seawater passage 130 is configured as a folded plate; the outer wall of the coolant partition plate 140 is configured as a folded plate, and the protrusion of the folded plate of the coolant partition plate 140 is inserted into the groove of the folded plate of the titanium alloy seawater passage 130. The folded plate can increase the contact area, thereby increasing the heat exchange efficiency.
[0040] Combination Figures 1-5 The specific implementation method of this seawater-freshwater heat exchanger is as follows:
[0041] 1. First, seawater is continuously injected into the titanium alloy seawater passage chamber 130. Then, engine coolant is injected into the area between the titanium alloy seawater passage chamber 130 and the coolant divider plate 140, so that the seawater cools the coolant. After heat exchange, the heated seawater is discharged from the seawater outlet 150a, while the cooled coolant returns to the engine from the coolant outlet.
[0042] 2. Then, the engine transmission oil is injected into the area between the coolant divider plate 140 and the outer titanium alloy frame 110, so that the cooled coolant cools the transmission oil; so that one set of equipment can cool the engine coolant and the engine transmission oil at the same time, and the cooled engine transmission oil returns to the engine from the transmission oil outlet.
[0043] 3. Finally, turn on the fan to blow air onto the outer titanium alloy frame 110 to accelerate the heat dissipation of the outer titanium alloy frame 110.
[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A seawater / freshwater heat exchanger, characterized in that, include: The heat exchange assembly (100) includes an outer titanium alloy frame (110), fixed legs (120) symmetrically fixed to the bottom of the outer titanium alloy frame (110), a titanium alloy seawater passage chamber (130) fixed to the middle of the inner wall of the outer titanium alloy frame (110), a coolant partition plate (140) symmetrically fixed to the inner wall of the outer titanium alloy frame (110), and a seawater inlet fixed to the top of the outer titanium alloy frame (110) and connected to the titanium alloy seawater passage chamber (130). The outer titanium alloy frame (110) has a seawater outlet (150a) fixed at the bottom and connected to the titanium alloy seawater passage (130), a coolant inlet (160) at the top of the outer titanium alloy frame (110), a coolant outlet at the bottom of the outer titanium alloy frame (110), a transmission oil inlet (170) at the top of the outer titanium alloy frame (110), and a transmission oil outlet at the bottom of the outer titanium alloy frame (110). The coolant inlet (160) and the coolant outlet are both connected to the area between the titanium alloy seawater passage chamber (130) and the coolant partition plate (140); The transmission oil inlet (170) and the transmission oil outlet are both connected to the area between the coolant divider plate (140) and the outer titanium alloy frame (110); A blower assembly (200) is disposed outside the outer titanium alloy frame (110) to blow air onto the outer titanium alloy frame (110).
2. The seawater / freshwater heat exchanger according to claim 1, characterized in that, The blower assembly (200) includes a connecting rod (210) symmetrically fixed to the outer wall of the outer titanium alloy frame (110), a connecting base plate (220) fixed to the connecting rod (210), and a fan (230) mounted on the connecting base plate (220).
3. The seawater / freshwater heat exchanger according to claim 1, characterized in that, The top of the outer titanium alloy frame (110) is symmetrically and uniformly connected with a distribution injection pipe (160a), a distribution pipe (160b) is connected to the distribution injection pipe (160a), a first interconnecting pipe (160c) is connected to the two distribution pipes (160b), and a coolant inlet (160) is connected to the first interconnecting pipe (160c).
4. The seawater / freshwater heat exchanger according to claim 1, characterized in that, The top of the outer titanium alloy frame (110) is symmetrically and uniformly connected with a transmission oil injection pipe (170a), and a second interconnecting pipe (170b) is connected to the transmission oil injection pipe (170a). The transmission oil inlet (170) is connected to the second interconnecting pipe (170b).
5. The seawater / freshwater heat exchanger according to claim 1, characterized in that, Heat dissipation fins (110a) are uniformly and symmetrically fixed on the outer wall of the outer titanium alloy frame (110).
6. The seawater / freshwater heat exchanger according to claim 1, characterized in that, The titanium alloy seawater is configured as a folding plate through the outer wall of the tank (130).
7. The seawater / freshwater heat exchanger according to claim 6, characterized in that, The outer wall of the coolant partition plate (140) is configured as a folded plate, and the protrusion of the folded plate of the coolant partition plate (140) is inserted into the groove of the folded plate of the titanium alloy seawater passage chamber (130).