High-pressure-resistant corrosion-resistant thin-walled heat exchanger for ships

Abstract

The utility model belongs to heat exchanger technical field, we propose a kind of high pressure resistance corrosion marine thin-walled heat exchanger, it is composed of frame structure, clamping device and heat exchange core board;The frame structure is composed of fixed compression plate, movable compression plate, upper guide rod, lower guide rod and stand, the frame structure is used to support entire heat exchanger;The stand is arranged in the rightmost side, and the fixed compression plate of left side is symmetrically arranged, the movable compression plate is arranged between fixed compression plate and stand;The upper guide rod is fixed on the inside upper side of stand, the lower guide rod is fixed on the inside lower side of stand, hanger group is installed in the top of movable compression plate;The problem that the plate heat exchanger pressure capacity is low is solved, so that structure is more compact, and in the aspect of improving product pressure capacity is more easy to operate, realizes the purpose of pressure capacity promotion under the condition of not increasing production cost, especially in the application of marine thin-walled titanium plate plate heat exchanger effect is more remarkable.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically a high-pressure, corrosion-resistant, thin-walled marine heat exchanger. Background Technology

[0002] Marine heat exchangers are mainly used in shipboard systems such as central heating, lubrication, high-temperature water, and fuel oil. With increasing market demands for high-pressure bearing capacity in marine heat exchangers, lightweight design is crucial while maintaining overall structural strength. This is especially true for thin-walled titanium plates used in seawater environments. The low strength of titanium itself results in low pressure bearing capacity, making it unsuitable for the shipbuilding industry's need for lightweight, high-pressure-bearing thin-walled titanium plate marine heat exchangers. Generally, marine heat exchangers consist of either all large-angle (greater than 90°) or all small-angle (less than 90°) plates. This results in a parallelogram-shaped cavity formed by the contact points of plates with equal corrugated normal intercepts. This structure has low pressure bearing capacity and is currently only suitable for design pressures below 1.0 MPa, failing to meet the requirements for marine heat exchangers with design pressures higher than 1.0 MPa. Utility Model Content

[0003] The purpose of this invention is to provide a high-pressure, corrosion-resistant, thin-walled marine heat exchanger to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-pressure-bearing and corrosion-resistant marine thin-walled heat exchanger, which consists of a frame structure, a clamping device, and a heat exchange core plate; The frame structure consists of a fixed clamping plate, a movable clamping plate, an upper guide rod, a lower guide rod, and a column. This frame structure supports the entire heat exchanger. The column is located on the far right, symmetrically arranged with the fixed clamping plate on the left. The movable clamping plate is positioned between the fixed clamping plate and the column. The upper guide rod is fixed to the upper inner side of the column, and the lower guide rod is fixed to the lower inner side of the column. A bracket assembly is installed on the top of the movable clamping plate, suspending it from the upper guide rod. A socket base is provided at the bottom of the movable clamping plate, which is then mounted on the lower guide rod. The heat exchange core plate is clamped between the fixed clamping plate and the movable clamping plate. The two heat exchange media in the heat exchanger exchange heat through the heat exchange core plate, which is the core component of the heat exchanger. The inner cavity of the heat exchange core plate is composed of two herringbone corrugated heat exchange plates with equal corrugated normal intercepts, consisting of plate one and plate two. Plate one is a large-angle plate with an included angle of 110°, and plate two is a small-angle plate with an included angle of 70°. The sum of the corrugated angles of plate one and plate two is 180°. Plate one and plate two are mixed in a herringbone-shaped rotating interval, and the contact surfaces of plate one and plate two form a rectangle.

[0005] Preferably, the first plate and the second plate form a flow channel cavity through the interval between the plates, and the inner walls of the first plate and the second plate facing the flow channel cavity are provided with slowing fin groups at equal intervals, and the slowing fin groups are composed of three turbulence fins.

[0006] Preferably, the middle turbulence fin is horizontally arranged, and one end of the turbulence fins on both sides is inclined towards the middle turbulence fin, so that the slowing fin group forms a gradually slowing cavity that is narrow at one end and wide at the other.

[0007] Preferably, the end faces of the turbulence fins are all provided with inclined surfaces to reduce impact. The turbulence fins have uniformly open turbulence grooves on the side facing the flow channel cavity. One end of the turbulence fins has a water inlet hole, and the water inlet hole is connected to the turbulence groove.

[0008] Compared with the prior art, the beneficial effects of this utility model are: This solution addresses the issue of low pressure-bearing capacity in plate heat exchangers, resulting in a more compact structure and easier operation in enhancing product pressure-bearing capacity. It achieves the goal of increasing pressure-bearing capacity without increasing production costs, with particularly significant effects in marine thin-walled titanium plate heat exchangers. Through the verification of the above technical solution on thin-walled titanium plate marine heat exchangers, this solution demonstrates a high-pressure-bearing structural design method. Its advantages lie in significantly reducing the possibility of deformation in marine thin-walled heat exchangers compared to existing detachable marine heat exchanger technology, doubling the pressure-bearing capacity under existing conditions, while simultaneously reducing product scrap rate and production costs, effectively ensuring a high first-time assembly pass rate for marine heat exchangers. Attached Figure Description

[0009] Figure 1 This is a cross-sectional view of the frame structure of this utility model; Figure 2 This is a front view of the frame structure of this utility model; Figure 3 This is a schematic diagram of the plate assembly structure of this utility model; Figure 4 This is a schematic diagram of the slow-moving fin assembly of this utility model; Figure 5 This is a schematic diagram of the turbulence-disrupting fish fin of this utility model.

[0010] In the diagram: 1 Fixed clamping plate, 2 Movable clamping plate, 3 Upper guide rod, 4 Lower guide rod, 5 Column, 6 Clamping device, 7 Hanger assembly, 8 Heat exchange core plate, 9 Plate 1, 10 Plate 2, 11 Turbulence fins, 12 Turbulence groove, 13 Water inlet. Detailed Implementation

[0011] 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.

[0012] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Example

[0013] Please see Figure 1-5 The present invention provides the following technical solution: a high pressure-bearing and corrosion-resistant marine thin-walled heat exchanger, which consists of a frame structure, a clamping device 6 and a heat exchange chip 8; the frame structure consists of a fixed clamping plate 1, a movable clamping plate 2, an upper guide rod 3, a lower guide rod 4 and a column 5, and the frame structure is used to support the entire heat exchanger. The column 5 is located on the far right and is symmetrically arranged with the fixed clamping plate 1 on the left. The movable clamping plate 2 is located between the fixed clamping plate 1 and the column 5. The upper guide rod 3 is fixed on the upper inner side of the column 5, and the lower guide rod 4 is fixed on the lower inner side of the column 5. The top of the movable clamping plate 2 is equipped with a bracket assembly 7, and the movable clamping plate 2 is suspended on the upper guide rod 3 through the bracket assembly 7. The bottom of the movable clamping plate 2 is equipped with a socket base, and the movable clamping plate 2 is installed on the lower guide rod 4 through the socket base. The heat exchange core plate 8 is clamped between the fixed clamping plate 1 and the movable clamping plate 2. The two heat exchange media in the heat exchanger exchange heat through the heat exchange core plate 8, which is the core component of the heat exchanger. The inner cavity of the heat exchange core plate 8 is made up of two kinds of herringbone corrugated heat exchange plates with equal corrugated normal intercepts, including plate 9 and plate 10. Plate 9 is a large-angle plate with an included angle of 110°, and plate 10 is a small-angle plate with an included angle of 70°. The sum of the corrugated angles of plate 9 and plate 10 is 180°. The contact surfaces of the two plates form a rectangle (see...) Figure 3 A significant characteristic of rectangles is that their four corners can better distribute and bear pressure when subjected to stress, thereby improving the overall pressure-bearing capacity of the heat exchange core plate. At the same time, rectangles have a more stable structure than parallelograms, and they also have a significant advantage when subjected to the same pressure. In addition, from the perspective of structural deformation, while keeping the perimeter constant, the area of ​​a rectangle is larger than that of a parallelogram, which also allows rectangles to provide a larger area and volume, making them more effective at bearing pressure. The heat exchanger was used to verify the pressure-bearing structure design method. The pressure-bearing capacity was increased from 1.0MPa to 2.0MPa under the condition of thin-walled titanium plates (thickness: 0.6mm). This greatly improved the pressure-bearing performance of the plate heat exchanger plates and met the requirements for marine heat exchangers with design pressures higher than 1.0MPa. Plate 1 9 and plate 2 10 are mixed and arranged in a fishbone-shaped rotating interval, and the contact surfaces of plate 1 9 and plate 2 10 form a rectangle; plate 1 9 and plate 2 10 form a flow channel cavity through the interval between the plates; slowing fin groups are equally spaced on the inner wall of the side of plate 1 9 and plate 2 10 facing the flow channel cavity; the slowing fin group consists of three turbulence fins 11, the middle turbulence fin 11 is horizontally arranged, and one end of the turbulence fins 11 on both sides is inclined towards the middle turbulence fin 11, so that the slowing fin group forms a gradually slowing cavity that is narrow at one end and wide at the other end. The end faces of the turbulence fins 11 are all provided with inclined surfaces to reduce impact. The turbulence fins 11 have uniformly open turbulence grooves 12 on the side facing the flow channel cavity. One end of the turbulence fins 11 has a water inlet hole 13, and the water inlet hole 13 is connected to the turbulence groove 12. The turbulence fins 11 are used to improve the turbulence characteristics of the fluid, reduce the impact pressure on the thin-walled titanium plate, and improve the overall pressure resistance stability; optimize the fluid channel design inside the heat exchanger to make the fluid flow in the heat exchanger more balanced and stable, and reduce pressure fluctuations and the formation of local high pressure areas. Working principle: The two heat exchange media in the heat exchanger exchange heat through the heat exchange core plate 8, which is the core function of the heat exchanger. The inner cavity of the heat exchange core plate 8 adopts a special plate mixing method, that is, two kinds of herringbone corrugated heat exchange plates (plate 1 9 and plate 2 10) with equal corrugated normal intercepts are mixed together. Plate 1 9 is a large-angle plate with an included angle of 110°, and plate 2 10 is a small-angle plate with an included angle of 70°, and the sum of their corrugated angles is 180°. When the two heat exchange media flow through plate 1 9 and plate 2 10 respectively, heat is transferred between the two media through the conduction of the plates, realizing the heat exchange process. The contact surfaces of plate 9 and plate 10 form a rectangular structure. Rectangles have unique advantages under pressure; their four corners can better distribute and bear pressure. Compared to other shapes (such as parallelograms), rectangles can more effectively distribute pressure evenly under the same pressure, thus improving the pressure-bearing capacity of the entire heat exchange core plate. Furthermore, while maintaining the same perimeter, the area of ​​a rectangle is larger than that of a parallelogram, meaning it can provide a larger area and volume to withstand pressure, further enhancing its pressure-bearing performance. Through practical verification, in the case of thin-walled titanium plates (thickness: 0.6mm), this rectangular pressure-bearing structure design increases the pressure-bearing capacity from 1.0MPa to 2.0MPa, meeting the design pressure requirement of marine heat exchangers exceeding 1.0MPa. Plate 9 and plate 10 are arranged in a fishbone-shaped rotating interval mixed assembly, with their contact surfaces forming a rectangle. This mixed assembly not only helps to form a stable pressure-bearing structure, but also allows the two heat exchange media to better exchange heat with the plates during the flow process by reasonably setting the flow channel cavity. It also lays the foundation for improving the fluid characteristics by setting the slow-speed fish fin group, and synergistically improves the pressure-bearing capacity of the entire heat exchange core plate. When fluid flows through the flow channel cavity, the slow-moving fin assembly disturbs the fluid, changing its flow state from a relatively turbulent state to a more stable state that is more conducive to heat exchange, thereby improving overall pressure resistance stability. The end faces of the turbulent fins 11 are all provided with inclined surfaces, which helps reduce the impact of the fluid on the fins themselves. Simultaneously, the fins 11 have uniformly open turbulent grooves 12 on the side facing the flow channel cavity, and one end has a water inlet 13 that communicates with the turbulent grooves 12, allowing the fluid to... The fluid enters through the inlet hole 13 and flows out through the turbulence groove 12, which serves to turbulent and slow down the fluid, reducing the pressure and impact of the fluid on the plates. These structural designs allow the fluid to flow more smoothly when passing through the turbulence fins 11, further reducing the impact pressure on the thin-walled titanium plates. The optimized fluid channel design inside the heat exchanger makes the fluid flow in the heat exchanger more balanced and stable, reducing pressure fluctuations and the formation of local high-pressure areas, thereby ensuring the stable operation of the heat exchanger in high-pressure and corrosion-resistant environments.

[0014] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious 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. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.

[0015] 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 high-pressure, corrosion-resistant marine thin-walled heat exchanger, comprising a frame structure, a clamping device (6), and a heat exchange core plate (8), characterized in that: The frame structure consists of a fixed clamping plate (1), a movable clamping plate (2), an upper guide rod (3), a lower guide rod (4), and a column (5). The frame structure is used to support the entire heat exchanger. The column (5) is located on the far right and is symmetrically arranged with the fixed clamping plate (1) on the left. The movable clamping plate (2) is located between the fixed clamping plate (1) and the column (5). The upper guide rod (3) is fixed above the inner side of the column (5), and the lower guide rod (4) is fixed below the inner side of the column (5). A bracket assembly (7) is installed on the top of the movable clamping plate (2). The movable clamping plate (2) is suspended on the upper guide rod (3) through the bracket assembly (7). A socket base is provided at the bottom of the movable clamping plate (2), and the movable clamping plate (2) is installed on the lower guide rod (4) through the socket base. The heat exchange core plate (8) is clamped between the fixed clamping plate (1) and the movable clamping plate (2). The two heat exchange media in the heat exchanger exchange heat through the heat exchange core plate (8), which is the core component of the heat exchanger. The inner cavity of the heat exchange core plate (8) is made of two kinds of herringbone corrugated heat exchange plates with equal corrugated normal intercepts, consisting of plate one (9) and plate two (10). Plate one (9) is a large-angle plate with an included angle of 110°, and plate two (10) is a small-angle plate with an included angle of 70°. The sum of the corrugated angles of plate one (9) and plate two (10) is 180°. Plate one (9) and plate two (10) are mixed in a fishbone-shaped rotating interval, and the contact surfaces of plate one (9) and plate two (10) form a rectangle.

2. The high-pressure, corrosion-resistant marine thin-walled heat exchanger according to claim 1, characterized in that: The first plate (9) and the second plate (10) form a flow channel cavity through the interval between the plates. The inner walls of the first plate (9) and the second plate (10) facing the flow channel cavity are provided with slowing fin groups at equal intervals. The slowing fin group is composed of three turbulence fins (11).

3. A high-pressure, corrosion-resistant marine thin-walled heat exchanger according to claim 2, characterized in that: The middle turbulence fin (11) is horizontally arranged, and one end of the turbulence fins (11) on both sides is inclined toward the middle turbulence fin (11), so that the slowing fin group forms a gradually slowing cavity that is narrow at one end and wide at the other.

4. A high-pressure, corrosion-resistant marine thin-walled heat exchanger according to claim 3, characterized in that: The end face of each of the turbulence fins (11) is provided with an inclined surface to reduce impact. The turbulence fins (11) have a uniformly open turbulence groove (12) on the side facing the flow channel cavity. One end of the turbulence fins (11) has a water inlet hole (13), and the water inlet hole (13) is connected to the turbulence groove (12).

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