Cylindrical plate heat exchanger

Abstract

A cylindrical plate heat exchanger comprises a cylindrical shell and a plurality of partition plates located in the shell. The multiple partition plates are all cylindrical wall bodies with different radiuses, the multiple partition plates completely coincide with the axis of the cylindrical shell and are arranged in the cylindrical shell according to the specific sequence and interval, and the internal space of the cylindrical shell is divided into multiple layers of cavities. Supporting pieces are installed in the multiple layers of cavities at certain intervals in the direction parallel to the axis, each cavity is divided into a plurality of uniform micro-channels enabling a first medium to circulate from left to right, and finally two specific channels, namely a first medium channel and a second medium channel, are formed. Through the arrangement of the multiple layers of cavities and the partition plates, the heat exchange area is greatly increased, and the heat exchange efficiency is improved; and meanwhile, the stability and safety of the heat exchange process are guaranteed through the design of the supporting pieces, and the heat exchanger meets the heat exchange requirements of various industrial fields.

Description

Technical Field

[0001] This application relates to the technical field of heat exchangers, and specifically relates to a cylindrical plate heat exchanger. Background Art

[0002] With the continuous development of industrial technology and the continuous improvement of energy conservation and emission reduction requirements, heat exchange equipment is facing more severe challenges. When traditional plate heat exchangers handle media with significant pressure differences, the limitations in their design and operation become increasingly prominent, leading to problems such as media penetration, reduced heat exchange efficiency, and potential safety risks. These problems severely restrict their further application and development.

[0003] To break through these bottlenecks, it has become particularly urgent to develop new technologies to optimize the performance and safety of plate heat exchangers. Summary of the Invention

[0004] The utility model provides a cylindrical plate heat exchanger. By setting multiple layers of cavities and partitions, the heat exchange area is greatly increased, and the heat exchange efficiency is improved.

[0005] Specifically described as follows: A cylindrical plate heat exchanger includes a cylindrical shell, a left end cover, a right end cover, a first medium inlet, a second medium outlet, a first medium outlet, a second medium inlet, a first medium channel, a second medium channel, and multiple partitions located inside the shell; the left end cover and the right end cover are respectively installed at the left and right ends of the cylindrical shell;

[0006] The first medium inlet is located on the left end cover and is in communication with the inside of the shell, and the first medium outlet is located on the right end cover and is in communication with the inside of the shell;

[0007] The multiple partitions are all cylindrical walls with different radii. The multiple partitions are completely coincident with the axis of the cylindrical shell and are arranged inside the cylindrical shell in a specific order and spacing, dividing the internal space of the cylindrical shell into multiple layers of cavities. The multiple layers of cavities alternate between a first medium channel and a second medium channel, that is, the first medium channel is adjacent to the second medium channel, and finally two specific channels are formed, namely the first medium channel and the second medium channel;

[0008] There is a confluence cavity between the left side of each layer of cavity of the first medium channel and the left end cover, and this confluence cavity is in communication with the first medium inlet; there is a confluence cavity between the right side of each layer of cavity of the first medium channel and the right end cover, and this confluence cavity is in communication with the first medium outlet;

[0009] Independent outlet headers / inlet headers are installed on the left side / right side of each layer of cavity of the second medium channel. All the inlet headers are directly in communication with the second medium inlet; the outlet headers are directly in communication with the second medium outlet.

[0010] Furthermore, both the left end cap and the right end cap are hollow convex end caps, which are respectively sealed and installed at the left and right ends of the cylindrical shell; the hollow convex parts of the left / right end caps form a first medium confluence cavity with the left / right sides of the first medium channel.

[0011] Furthermore, in the multi-layer cavities of the first medium channel, support sheets are installed at certain intervals in the direction parallel to the axis line. Each cavity is divided into multiple uniform micro-channels for the first medium to flow from left to right; the left ends of the cavities of each layer of the first medium channel communicate and converge at the left confluence cavity, and then communicate with the first medium inlet. The right ends communicate and converge at the right confluence cavity and communicate with the first medium outlet.

[0012] Furthermore, in the multi-layer cavities of the second medium channel, support sheets are installed at certain intervals in the direction parallel to the axis line. Each cavity is divided into multiple uniform micro-channels for the first medium to flow from left to right; the left ends of the micro-channels of each layer of the second medium channel communicate with the corresponding outlet header, and the right ends communicate with the corresponding inlet header. Finally, the inlet headers of each layer of the second medium channel communicate with the second medium inlet; the outlet headers of each layer of the second medium channel communicate with the second medium outlet.

[0013] Furthermore, the partition board is made of a material with good thermal conductivity.

[0014] Advantageous effects: By ingeniously arranging the multi-layer cavities and the partition board, the present utility model greatly increases the heat exchange area, thereby significantly improving the heat exchange efficiency. At the same time, the unique design of the support sheet ensures the stability and safety of the heat exchange process, enabling this solution to be widely applied to the heat exchange requirements of various industrial fields. This innovative design effectively solves the problems of poor heat exchange efficiency and safety of traditional heat exchangers when facing different pressure media, and realizes a comprehensive improvement in performance through reorganizing the structural logic. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic transverse structure diagram of the cylindrical plate heat exchanger of the present utility model.

[0016] Figure 2 It is a schematic structure diagram of a partially transversely cut part of the cylindrical plate heat exchanger of the present utility model.

[0017] Figure 3 It is a schematic front view cross-sectional diagram of the left end of the cylindrical plate heat exchanger of the present utility model.

[0018] Figure 4 It is a schematic cross-sectional view of the left end of the cylindrical plate heat exchanger of the present utility model.

[0019] Figure 5This is a schematic right - end cross - section view of the cylindrical plate heat exchanger of the present utility model.

[0020] Figure 6 This is a three - dimensional cross - section view of the cylindrical plate heat exchanger of the present utility model.

[0021] Figure 7 This is a three - dimensional sectional view of the cylindrical plate heat exchanger of the present utility model.

[0022] In the figure: 1. First medium inlet; 21. Left end cover; 22. Right end cover; 3. Second medium outlet; 31. Second cavity outlet header; 32. Fourth cavity outlet header; 4. Shell; 5. First medium outlet; 61. First partition; 62. Second partition; 63. Third partition; 64. Fourth partition; 7. Second medium inlet; 71. Second cavity inlet header; 72. Fourth cavity inlet header; 8. Support plate. Detailed implementation manners

[0023] The following examples are used to further illustrate the present utility model. The following is only the preferred embodiment of the present utility model and is not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent substitution on some of the technical features. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

[0024] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "left", "right", "radial", "transverse", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings or the orientation or positional relationship in which the product of the present utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0025] Please refer to Figures 1 to 7 As shown, a cylindrical plate heat exchanger of the present utility model includes a cylindrical shell 4, a left end cover 21, a right end cover 22, a first medium inlet 1, a second medium outlet 3, a first medium outlet 5, a second medium inlet 7, a first medium channel, a second medium channel, and first partitions 61, second partitions 62, third partitions 63, and fourth partitions 64 located inside the shell.

[0026] Please refer to Figure 2 and Figure 3As shown, the left end cap 21 and the right end cap 22 are both hollow convex end caps, which are respectively and sealingly installed at the left and right ends of the cylindrical shell 4; a first medium inlet 1 communicating with the interior of the shell 4 is provided on the left end cap 21, and a first medium outlet 5 communicating with the interior of the shell 4 is provided on the right end cap 22.

[0027] Please refer to Figures 4 to 7 As shown, the first partition 61, the second partition 62, the third partition 63 and the fourth partition 64 are all cylindrical walls with different radii. The first partition 61, the second partition 62, the third partition 63 and the fourth partition 64 are completely coincident with the axis line of the cylindrical shell 4, and are arranged in the cylindrical shell 4 in a specific order and at specific intervals, dividing the interior space of the shell 4 into five layers of cavities, forming two specific channels, namely the first medium channel and the second medium channel.

[0028] The first cavity formed by the inner surface of the shell 4 and the outer surface of the first partition 61, the third cavity formed by the inner surface of the second partition 62 and the outer surface of the third partition 63, and the fifth cavity in the middle of the fourth partition 64 form the first medium channel; support sheets 8 are installed at certain intervals along the radial direction between the first cavity and the third cavity, dividing the first cavity and the second cavity into a plurality of uniform microchannels; the microchannels inside the first cavity and the second cavity and the left end of the fifth cavity communicate and converge at the hollow convex part of the left end cap 21, and then communicate with the first medium inlet 1, and its right end communicates and converges at the hollow convex part of the right end cap 22 and communicates with the first medium outlet 5.

[0029] The second cavity formed by the inner surface of the first partition 61 and the outer surface of the second partition 62 and the fourth cavity formed by the inner surface of the third partition 63 and the outer surface of the fourth partition 64 form the second medium channel; support sheets 8 are installed at certain intervals along the radial direction between the second cavity and the fourth cavity, dividing the second cavity and the fourth cavity into a plurality of uniform microchannels. The left end of the microchannel of the second cavity is connected to a second cavity outlet header 31, and its right end is connected to a second cavity inlet header 71; the left end of the microchannel of the fourth cavity is connected to a fourth cavity outlet header 32, and its right end is connected to a fourth cavity inlet header 72; the second cavity inlet header 71 and the fourth cavity inlet header 72 are connected to the second medium inlet 5; the second cavity outlet header 31 and the fourth cavity outlet header 32 are connected to the second medium outlet 3.

[0030] The second medium inlet 5 and the second medium outlet 3 both have two symmetric inlets and outlets; the two inlets and outlets can work simultaneously or one can work while the other serves as a standby.

[0031] The first partition 61, the second partition 62, the third partition 63 and the fourth partition 64 are all made of materials with good thermal conductivity.

[0032] The above-mentioned support piece 8, as a reinforcing rib, can significantly improve the overall strength and stiffness of the cavity, and prevent deformation or rupture when subjected to external pressure or internal medium action.

[0033] When the heat exchanger of the present utility model works, there are two cycles, namely the first medium cycle and the second medium cycle;

[0034] First medium cycle: The first medium enters the hollow protrusion of the left end cover 21 of the shell from the first medium inlet 1, is evenly distributed in the left end cover 21, and then enters the micro-channels (channels) in the first cavity, the third cavity and the fifth cavity, and exchanges heat with the second medium in the micro-channels of the second cavity and the fourth cavity; after the first medium exchanges heat, it directly converges at the hollow protrusion of the right end cover 2, and then is transported out through the first medium outlet 5, thus completing the first medium cycle.

[0035] Second medium cycle: The second medium is sent into the second cavity inlet header 71 and the fourth cavity inlet header 72 from the second medium inlet 7, and enters the micro-channels of the second cavity and the fourth cavity through the second cavity inlet header 71 and the fourth cavity inlet header 72 respectively to exchange heat with the first medium in the first medium channel. After the second medium exchanges heat, it converges at the second cavity outlet header 31 and the fourth cavity outlet header 32 respectively, and then is transported out through the two second medium outlets 3, thus completing the second medium cycle.

[0036] As mentioned above, the first medium in the first medium channel is preferably a high-temperature medium, and the second medium in the second medium channel is a low-temperature medium.

[0037] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as components or combinations of components. However, those skilled in the art should know that the present application is not limited by the names of the described components, because according to the present application, some components that can achieve the functions of the above corresponding components are also within the protection scope of the present application. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the components involved are not necessarily essential to the present application.

Claims

1. A cylindrical plate heat exchanger, characterized in that: It includes a cylindrical shell, a left end cover, a right end cover, a first medium inlet, a second medium outlet, a first medium outlet, a second medium inlet, a first medium channel, a second medium channel, and a plurality of partitions located inside the shell; The left end cover and the right end cover are respectively installed at the left and right ends of the cylindrical shell; the first medium inlet is located on the left end cover and communicated with the inside of the shell, and the first medium outlet is located on the right end cover and communicated with the inside of the shell; The multiple baffles are all cylindrical walls with different radii. The multiple baffles completely coincide with the axis of the cylindrical shell and are arranged inside the cylindrical shell in a certain order and spacing, dividing the internal space of the cylindrical shell into multi-layer cavities. The multi-layer cavities are alternately the first medium channel and the second medium channel, that is, the first medium channel is adjacent to the second medium channel, and finally two channels are formed, namely the first medium channel and the second medium channel; There is a merging cavity between the left side of each layer of the cavity of the first medium channel and the left end cover, and the merging cavity is connected to the first medium inlet; there is a merging cavity between the right side of each layer of the cavity of the first medium channel and the right end cover, and the merging cavity is connected to the first medium outlet; Independent outlet headers / inlet headers are installed on the left / right sides of each layer of the second medium channel, and all inlet headers are directly connected to the second medium inlet; the outlet header is directly connected to the second medium outlet.

2. A cylindrical plate heat exchanger according to claim 1, characterized in that: The left end cover and the right end cover are both hollow protruding end covers, which are respectively sealed and installed at the left and right ends of the cylindrical shell; the hollow protrusions of the left / right end covers and the left / right sides of the first medium channel form a first medium converging cavity.

3. A cylindrical plate heat exchanger according to claim 1, characterized in that: Support sheets are installed in the multilayer cavity of the first medium channel at a certain interval parallel to the axis direction, and each cavity is divided into a plurality of uniform microchannels for allowing the first medium to flow from left to right; the left ends of the cavities of each layer of the first medium channel are connected and merged at the left merging cavity, and then connected to the first medium inlet, and the right ends are connected and merged at the right merging cavity and connected to the first medium outlet.

4. A cylindrical plate heat exchanger according to claim 1, characterized in that: Support sheets are installed in the multilayer cavity of the second medium channel at certain intervals parallel to the axial centerline direction, and each cavity is divided into a plurality of uniform microchannels for allowing the first medium to flow from left to right; the left end of the microchannel of each layer of the cavity of the second medium channel is connected to the corresponding outlet header, and the right end is connected to the corresponding inlet header, and finally the inlet header of each layer of the cavity of the second medium channel is connected to the inlet of the second medium; the outlet header of each layer of the cavity of the second medium channel is connected to the outlet of the second medium.

5. The cylindrical plate heat exchanger according to claim 1, characterized in that: The partition is made of heat-conductive material.

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