Ship heat exchange structure

Abstract

The invention relates to the technical field of heat exchange equipment, and provides a ship heat exchange structure which comprises a plurality of unit cell structures, and each unit cell structure comprises a polyhedral frame and a supporting structure; the supporting structures are connected with the vertexes of the polyhedral frame respectively. A first flow channel is formed in the polyhedral frame and / or the supporting structure; the plurality of unit cell structures are arranged in an array and are connected with each other, and the first flow channels of the adjacent unit cell structures are communicated with each other; gaps of the unit cell structures form second flow channels; the first flow channel is used for introducing cooling liquid, and the second flow channel is used for introducing condensed gas. According to the ship heat exchange structure, the gaps of the unit cell structures form the second flow channels allowing the condensed gas to pass through, and the first flow channels allowing the cooling liquid to flow are formed in the unit cell structures so that the condensed gas can be cooled; the supporting structures of the unit cell structures support the polyhedral frame from the interior so as to improve the mechanical property of the unit cell structures, and the multiple unit cell structures are connected with one another, so that the mechanical property of the whole ship heat exchange structure is better.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat exchange equipment, in particular to a ship heat exchange structure. BACKGROUND

[0002] The ship heat exchange structure is the core of the ship vapor-liquid cooling system. In the prior art, the ship heat exchange structure is designed with a regular array of cylindrical pipes. However, the cylindrical condensing pipes have the disadvantage of low mechanical performance, and stress concentration easily occurs when external forces are borne, leading to deformation and failure of the pipes. SUMMARY

[0003] The present application provides a ship heat exchange structure to solve the problem of low mechanical performance of the cylindrical condensing pipes in the prior art, and stress concentration easily occurs when external forces are borne, leading to deformation and failure of the pipes.

[0004] The present application provides a ship heat exchange structure, comprising: a plurality of unit cell structures, each of which comprises a polyhedral frame and a support structure; the support structure is connected to each vertex of the polyhedral frame; the interior of the polyhedral frame and / or the support structure forms a first flow channel; a plurality of unit cell structures are arranged in an array and connected to each other, and the first flow channels of adjacent unit cell structures are connected to each other; the gaps between the unit cell structures form a second flow channel; the first flow channel is used to pass in cooling liquid, and the second flow channel is used to pass in condensed gas.

[0005] According to the ship heat exchange structure of the present application, the polyhedral frame comprises a plurality of first connecting pipes, and the plurality of first connecting pipes respectively extend along the edges of the polyhedron and are connected to each other to form the polyhedral frame; the support structure comprises a plurality of second connecting pipes, and the two vertices of the polyhedral frame that are not connected by the first connecting pipes are connected by the second connecting pipes; the first connecting pipe and / or the second connecting pipe forms the first flow channel.

[0006] According to the ship heat exchange structure of the present application, the polyhedral frame is an octahedral frame; the support structure comprises three second connecting pipes corresponding to the diagonal lines of the octahedral frame, and the second connecting pipes extend along the corresponding diagonal lines.

[0007] According to the ship heat exchange structure of the present application, the middle parts of any two second connecting pipes are connected perpendicularly to each other.

[0008] According to the ship heat exchange structure of the present application, the center of gravity of the polyhedral frame and the center of gravity of the support structure coincide with each other.

[0009] The polyhedral frame is an octahedron frame.

[0010] The ship heat exchange structure according to the present application has a tapered structure from the steam inlet side to the steam outlet side.

[0011] The ship heat exchange structure according to the present application has a fan ring shape, the outer arc side of the ship heat exchange structure forms the steam inlet side, and the inner arc side of the ship heat exchange structure forms the steam outlet side.

[0012] The ship heat exchange structure according to the present application has multiple groups of unit cell structures; each group of unit cell structures includes multiple rows of unit cell structures. Each row of unit cell structures includes multiple unit cell structures arranged along the circumferential direction of the ship heat exchange structure; the multiple rows of unit cell structures of each group of unit cell structures are arranged along the axial direction of the ship heat exchange structure; and the multiple groups of unit cell structures are arranged along the radial direction of the ship heat exchange structure.

[0013] The ship heat exchange structure according to the present application has a truncated pyramid shape, the lower base of the ship heat exchange structure forms the steam inlet side, and the upper base of the ship heat exchange structure forms the steam outlet side.

[0014] The ship heat exchange structure according to the present application is composed of multiple unit cell structures arranged in an array and connected to each other, and each unit cell structure is composed of a polyhedral frame and a support structure. It can be understood that there is a certain gap between the polyhedral frame and the support structure and between adjacent unit cell structures, and these gaps are connected to each other to form a second flow channel for the flow of condensed gas (such as high-temperature steam); at the same time, the polyhedral frame or the support structure can be composed of multiple hollow tubes connected to each other to form a first flow channel for the flow of cooling liquid (usually cooling water) in the interior of the polyhedral frame or the support structure, and the first flow channels in adjacent unit cell structures are connected to each other to form a network for the flow of cooling liquid. The cooling liquid in the first flow channel can exchange heat with the condensed gas in the second flow channel outside to cool the condensed gas. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort.

[0016] Figure 1 is a three-dimensional schematic view of the ship heat exchange structure provided by the embodiments of the present application.

[0017] Figure 2 This is a front view of the ship heat exchange structure provided in an embodiment of the present invention.

[0018] Figure 3 This is a schematic diagram of the single-cell structure provided in an embodiment of the present invention.

[0019] Figure label: 1. Ship heat exchange structure; 11. Unit cell structure; 111. Polyhedral framework; 112. Supporting structure; 12. Steam inlet side; 13. Steam outlet side. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0021] The following is combined Figures 1-3 The present invention describes a ship heat exchange structure.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides a ship heat exchange structure 1, comprising: a plurality of unit cell structures 11, each unit cell structure 11 comprising: a polyhedral frame 111 and a support structure 112; the support structure 112 is connected to each vertex of the polyhedral frame 111; a first flow channel is formed inside the polyhedral frame 111 and / or the support structure 112; the plurality of unit cell structures 11 are arranged in an array and interconnected, and the first flow channels of adjacent unit cell structures 11 are interconnected; the gaps between the unit cell structures 11 form a second flow channel; the first flow channel is used to introduce coolant, and the second flow channel is used to introduce condensate gas.

[0023] The ship heat exchange structure 1 of this embodiment can be applied to any heat exchange equipment, such as condensing heat exchange equipment in application scenarios such as ships and power plants.

[0024] The ship heat exchange structure 1 of the embodiment is formed by arraying and connecting a plurality of unit cell structures 11, each of which is formed by a polyhedral frame 111 and a support structure 112. It can be understood that there is a gap between the polyhedral frame 111 and the support structure 112 and between adjacent unit cell structures 11, and the gaps are connected to form a second flow channel for the flow of condensed gas (such as high-temperature steam). Meanwhile, the polyhedral frame 111 or the support structure 112 can be formed by connecting a plurality of hollow tubes to form a first flow channel for the flow of cooling liquid (usually cooling water) in the interior of the polyhedral frame 111 or the support structure 112. The first flow channels in adjacent unit cell structures 11 are connected to form a network for the flow of cooling liquid. The cooling liquid in the first flow channel can exchange heat with the condensed gas in the second flow channel outside to cool the condensed gas.

[0025] Alternatively, the first flow channel can be formed only in the interior of the polyhedral frame 111, or only in the interior of the support structure 112, or in both.

[0026] In addition, the polyhedral frame 111 of the single unit cell structure 11 and the support structure 112 inside the polyhedral frame 111 cooperate with each other to support the polyhedral frame 111 by the support structure 112, so that the unit cell structure 11 has better mechanical properties. Meanwhile, by arraying and connecting a plurality of unit cell structures 11, the plurality of unit cell structures 11 can bear stress as a whole, further improving the mechanical properties of the entire ship heat exchange structure 1 and effectively avoiding stress concentration and deformation of the entire ship heat exchange structure 1.

[0027] The ship heat exchange structure 1 of the embodiment is formed by arraying and connecting a plurality of unit cell structures 11, each of which is formed by a polyhedral frame 111 and a support structure 112. It can be understood that there is a gap between the polyhedral frame 111 and the support structure 112 and between adjacent unit cell structures 11, and the gaps are connected to form a second flow channel for the flow of condensed gas (such as high-temperature steam). Meanwhile, the polyhedral frame 111 or the support structure 112 can be formed by connecting a plurality of hollow tubes to form a first flow channel for the flow of cooling liquid (usually cooling water) in the interior of the polyhedral frame 111 or the support structure 112. The first flow channels in adjacent unit cell structures 11 are connected to form a network for the flow of cooling liquid. The cooling liquid in the first flow channel can exchange heat with the condensed gas in the second flow channel outside to cool the condensed gas.

[0028] Optionally, the polyhedral framework 111 of the present application can be one or more of a tetrahedron framework, an octahedron framework, a decahedron framework.

[0029] In some embodiments, as shown in Figure 1 , Figure 2 and Figure 3 , the polyhedral framework 111 comprises a plurality of first connecting pipes, each of which extends along an edge of the polyhedron and is connected to each other to form the polyhedral framework 111; the support structure 112 comprises a plurality of second connecting pipes, each of which connects two vertices of the polyhedral framework 111 which are not connected by the first connecting pipes; and the first connecting pipes and / or the second connecting pipes are formed with first flow channels.

[0030] In the present embodiment, the polyhedral framework 111 is formed by a plurality of first connecting pipes connected to each other, specifically, the first connecting pipes are arranged corresponding to the edges of the polyhedron, and extend along the corresponding edges and to the end points of the edges (i.e. the vertices of the polyhedron) and are connected to another first connecting pipe, thereby forming a polyhedral framework 111 with only solid structures at the edge and end point positions, and meanwhile, the support structure 112 is formed by connecting two vertices of the polyhedral framework 111 which are not connected by the first connecting pipes by the second connecting pipes, so as to form a support structure 112 on the inner side of the polyhedral framework 111 to strengthen the mechanical strength of the entire unit cell structure 11. The gap between the first connecting pipes and the second connecting pipes can form a second flow channel for the flow of condensed gas; the first connecting pipes or the second connecting pipes can be hollow pipe bodies, or both the first connecting pipes and the second connecting pipes are hollow pipe bodies, so as to form a first flow channel for the flow of cooling liquid.

[0031] In some specific embodiments, as shown in Figure 1 , Figure 2 and Figure 3 , the polyhedral framework 111 is an octahedron framework; the support structure 112 comprises three second connecting pipes arranged corresponding to the diagonal lines of the octahedron framework one by one, and the second connecting pipes extend along the corresponding diagonal lines.

[0032] In the present embodiment, the polyhedral framework 111 is an octahedron framework formed by twelve first connecting pipes connected to each other, and the octahedron framework has three diagonal lines, and the three second connecting pipes extend along the three diagonal lines to connect the vertices at the two ends of the diagonal lines, so as to strengthen the mechanical strength of the unit cell structure 11 as a whole.

[0033] Further, in some embodiments, as shown in Figure 1 , Figure 2 and Figure 3 , the middle portions of any two second connecting pipes are connected to each other perpendicularly.

[0034] In the embodiment, by reasonably setting the shape of the octahedron of the polyhedral frame 111, any two diagonal lines of the octahedron can be made to be perpendicular to each other, so that the middle parts of the second connecting pipes extending along the diagonal lines can be connected to each other perpendicularly, and then the plurality of second connecting pipes form an entirety, which has better mechanical properties and structural strength, can be connected with the polyhedral frame 111, so as to form the unit cell structure 11 with better mechanical properties.

[0035] Further, in some embodiments, as shown in Figure 1 , Figure 2 and Figure 3 , the center of gravity of the polyhedral frame 111 and the center of gravity of the support structure 112 coincide with each other. In the embodiment, by reasonably setting the shape and structure of the polyhedral frame 111 and the support structure 112, the center of gravity of the polyhedral frame 111 and the center of gravity of the support structure 112 can be made to coincide with each other, so as to further strengthen the connection strength and mechanical bearing performance of the entirety of the polyhedral frame 111 and the support structure 112.

[0036] Specifically, in some embodiments, the polyhedral frame 111 is a regular octahedral frame. In the embodiment, the polyhedral frame 111 is a regular octahedral frame formed by twelve first connecting pipes with the same length, three diagonal lines of the regular octahedron have the same length, are perpendicular to each other and intersect at the same point, and the intersection point coincides with the center of gravity of the entire polyhedral frame 111. Correspondingly, the support structure 112 formed by three second connecting pipes also has a cross structure, the three second connecting pipes are perpendicular to each other and intersect at the same position, and the center of gravity of the polyhedral frame 111 and the support structure 112 coincide with each other. When stressed, the main deformation trend of the regular octahedral frame is tensile deformation, which has better compression strength, impact resistance and better bearing capacity. At the same time, when compressed, the stress concentration point of the regular octahedral frame is the center of the first connecting pipe inclined to the direction of stress, and the support structure 112 in the form of cross inside the regular octahedral frame can delay the fracture strain of the first connecting pipe during compression, so that the entire unit cell structure 11 has better mechanical compression performance.

[0037] Specifically, when designing the unit cell structure 11, a unit cubic with a length of a can be taken as the design basis, the unit cubic has six square faces, each square face has a face center, each first connecting pipe is connected with the face center of one square face and the face center of the adjacent square face, thereby forming a regular octahedral frame, and the length of each first connecting pipe is a. The support structure 112 includes three second connecting pipes with a length of a, and each second connecting pipe is connected with the face centers of two opposite square faces to form a cross-shaped support structure 112.

[0038] It can be understood that the first connecting pipe and the second connecting pipe of the embodiment can be micro-pipes with extremely small sizes; the first connecting pipe and the second connecting pipe can be made of materials with good thermal conductivity, such as metal pipes, so as to conduct heat between the cooling liquid and the condensed gas and improve the heat exchange efficiency.

[0039] In some embodiments, as shown in Figure 1 , Figure 2 and Figure 3 , the ship heat exchange structure 1 is a tapered structure from the inlet side 12 to the outlet side 13.

[0040] It can be understood that the ship heat exchange structure 1 is a spatial three-dimensional structure, which is usually arranged in a heat exchange device, so that the condensed gas can flow through the ship heat exchange structure 1 and exchange heat with the cooling liquid flowing in the single cell structure 11 during the flow through the ship heat exchange structure 1, so as to be cooled. In the embodiment, the ship heat exchange structure 1 is designed to be a tapered structure from the inlet side 12 to the outlet side 13, so that the cross-sectional area of the second flow channel gradually decreases from the inlet side 12 to the outlet side 13. In combination with the temperature distribution of the condensed gas between the inlet side 12 and the outlet side 13, the condensed gas can be more uniformly distributed in each area of the ship heat exchange structure 1, the heat exchange is more sufficient, the heat exchange efficiency is higher, and the situation that part of the high-temperature gas is not completely condensed during the cooling process can be avoided.

[0041] Optionally, in some embodiments, as shown in Figure 1 , Figure 2 and Figure 3 , the ship heat exchange structure 1 is a fan ring, the outer arc side of the ship heat exchange structure 1 forms the inlet side 12, and the inner arc side of the ship heat exchange structure 1 forms the outlet side 13.

[0042] It can be understood that the fan ring refers to the part of the circular ring cut by the fan, which is surrounded by two concentric arc sides and two radii; the ship heat exchange structure 1 of the embodiment is a three-dimensional structure with a fan ring cross-section and a certain thickness, the outer arc surface forms the inlet side 12 for the condensed gas, and the outer arc surface forms the outlet side 13 for the condensed gas or liquid. This fan ring structure can make the gas move along the radial direction of the fan ring structure as much as possible, so that the gas at different positions can be uniformly and sufficiently exchanged with the cooling liquid in the ship heat exchange structure 1, and the situation that part of the gas is not completely condensed can be avoided.

[0043] Specifically, in some embodiments, the single cell structure 11 has multiple groups; each group of single cell structures 11 includes multiple rows of single cell structures 11; each row of single cell structures 11 includes multiple single cell structures 11 arranged along the circumferential direction of the ship heat exchange structure 1; the multiple rows of single cell structures 11 of each group of single cell structures 11 are arranged along the axial direction of the ship heat exchange structure 1; and the multiple groups of single cell structures 11 are arranged along the radial direction of the ship heat exchange structure 1.

[0044] In this embodiment, multiple unit cell structures 11 in each row are arranged circumferentially along the ship heat exchange structure 1, and the multiple unit cell structures 11 form an arc-shaped single row structure; each group of unit cell structures 11 includes multiple such single row structures, and the multiple single row structures are arranged axially along the ship heat exchange structure 1 (i.e., in the direction perpendicular to the fan annular surface), thereby forming an arc-shaped single-layer structure, and the multiple single-layer structures are arranged radially along the ship heat exchange structure 1, thereby forming a fan-shaped annular three-dimensional ship heat exchange structure 1.

[0045] In one specific embodiment, such as Figure 1 , Figure 2 and Figure 3 Figure 1 Figure 2 Figure 3 As shown, each unit cell structure 11 includes an octahedral polyhedral frame 111 and a cross-shaped support structure 112. The support structure 112 includes three mutually perpendicularly connected second connecting pipes, one of which extends radially along the fan-shaped ring, and the other extends axially along the fan-shaped ring. Each vertex of the polyhedral frame 111 is connected to an adjacent polyhedral frame 111. Furthermore, adjacent sets of unit cell structures 11 contain the same number of unit cell structures 11, and are arranged in a one-to-one correspondence. Corresponding unit cell structures 11 in adjacent sets of unit cell structures 11 are interconnected. To ensure a one-to-one correspondence between the unit cell structures 11 in adjacent sets of unit cell structures 11, and to ensure that the ship heat exchange structure 1 composed of unit cell structures 11 forms a fan-shaped ring, the dimensions of the two sets of unit cell structures 11 differ along the circumferential direction of the fan-shaped ring. Specifically, from the steam inlet side 12 to the steam outlet side 13, the dimensions of the unit cell structure 11 gradually decrease along the circumferential direction of the fan-shaped ring.

[0046] Alternatively, in another embodiment, the number of unit cell structures 11 contained in each group of unit cell structures 11 can be adjusted so that multiple groups of unit cell structures 11 can be interconnected to form a fan-shaped annular ship heat exchange structure 1. Specifically, the number of unit cell structures 11 contained in a single group of unit cell structures 11 gradually decreases from the steam inlet side 12 to the steam outlet side 13.

[0047] Understandably, the first flow channel within part of the unit cell structure 11 can be connected to the external coolant circulation pipeline to allow the coolant to circulate.

[0048] It is understandable that the overall structure of the ship heat exchange structure 1 can also be a three-dimensional structure such as a frustum or prism that tapers or radiates from one side to the other; the specific shape can be designed according to the structural requirements of the heat exchange equipment.

[0049] In one embodiment not shown, the ship heat exchange structure 1 is frustum-shaped, with the lower bottom surface of the ship heat exchange structure 1 forming the steam inlet side 12 and the upper bottom surface of the ship heat exchange structure 1 forming the steam exhaust side 13.

[0050] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A heat exchange structure of a ship, characterized by, The application relates to a ship heat exchange structure. The ship heat exchange structure comprises a plurality of single-cell structures, each of which comprises a polyhedral frame and a support structure; the support structure is connected with each vertex of the polyhedral frame respectively; and the inside of the polyhedral frame and / or the support structure is formed with a first flow channel. The plurality of single-cell structures are arranged in an array and are connected with each other, the first flow channels of adjacent single-cell structures are communicated with each other, the gaps of the single-cell structures form a second flow channel, the first flow channel is used for passing in cooling liquid, and the second flow channel is used for passing in condensed gas.

2. The ship heat exchange structure according to claim 1, characterized in that, The polyhedral frame comprises a plurality of first connecting pipes, the plurality of first connecting pipes respectively extend along the edges of a polyhedron and are connected with each other to form the polyhedral frame. The support structure comprises a plurality of second connecting pipes, and two vertices of the polyhedral frame which are not connected by the first connecting pipes are connected by the second connecting pipes. The first connecting pipes and / or the second connecting pipes are formed with the first flow channel.

3. The ship heat exchanging structure according to claim 2, characterized in that, The polyhedral frame is an octahedral frame; the support structure comprises three second connecting pipes which are arranged in one-to-one correspondence with the diagonal lines of the octahedral frame and extend along the corresponding diagonal lines.

4. The ship heat exchanging structure according to claim 3, characterized in that, The middle parts of any two second connecting pipes are connected perpendicularly with each other.

5. A ship heat exchange structure according to claim 4, characterized in that The center of gravity of the polyhedral frame and the center of gravity of the support structure coincide with each other.

6. The ship heat exchanging structure according to claim 5, characterized in that, The polyhedral frame is a regular octahedral frame.

7. The ship heat exchange structure according to claim 1, characterized by The ship heat exchange structure is in a tapered structure from an inlet side to an outlet side.

8. A ship heat exchange structure according to claim 7, characterized in that The ship heat exchange structure is in a fan ring shape, the outer arc-shaped side of the ship heat exchange structure forms the inlet side, and the inner arc-shaped side of the ship heat exchange structure forms the outlet side.

9. A ship heat exchange structure according to claim 8, characterized in that The single-cell structures are divided into a plurality of groups; each group of single-cell structures comprises a plurality of rows of single-cell structures. Each row of single-cell structures comprises a plurality of single-cell structures arranged along the circumferential direction of the ship heat exchange structure; the plurality of rows of single-cell structures of each group of single-cell structures are arranged along the axial direction of the ship heat exchange structure; and the plurality of groups of single-cell structures are arranged along the radial direction of the ship heat exchange structure.

10. The ship heat exchange structure according to claim 7, characterized by The ship heat exchange structure is in a prism shape, the lower bottom surface of the ship heat exchange structure forms the inlet side, and the upper bottom surface of the ship heat exchange structure forms the outlet side.

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