Tube sheet assembly and heat exchanger

Abstract

The application belongs to the technical field of heat exchangers, and discloses a tube sheet assembly and a heat exchanger, wherein the tube sheet assembly comprises a connecting piece and a plurality of tube sheets, each of the tube sheets is provided with a tube hole for connecting a tube bundle, the plurality of tube sheets are sequentially arranged along an arrangement direction, and the plurality of tube sheets jointly form a tube bundle support plate, a projection area of the tube bundle support plate along a cylinder axial direction towards a cylinder end portion is smaller than a port area of the cylinder end portion, so that the tube bundle support plate can enter the cylinder through the port of the cylinder end portion, the connecting piece is located between the plurality of tube sheets and is used for connecting the plurality of tube sheets into one, thereby on the one hand, the utilization rate of the tube sheet is improved, the required raw material amount during production and manufacturing of the tube sheet is reduced, and the production and manufacturing cost of the tube sheet assembly is reduced, and on the other hand, a shell side inlet and a shell side outlet can be arranged at the end portion of the cylinder, so as to increase a flow path of a shell side medium in the cylinder, thereby increasing a heat exchange time of the shell side medium and a tube side medium, and thereby improving the heat exchange efficiency of the heat exchanger.

Description

Technical Field

[0001] This application belongs to the technical field of heat exchangers, specifically relating to a tube sheet assembly and a heat exchanger. Background Technology

[0002] A heat exchanger is an energy-saving device that facilitates heat transfer between two or more fluids at different temperatures. It transfers heat from a higher-temperature fluid to a lower-temperature fluid, ensuring the fluid temperature meets process specifications and thus fulfilling the required process conditions. To improve the thermal efficiency of heat exchangers and reduce energy consumption, multi-flow heat exchangers have been developed. These exchangers contain multiple tube bundles, each carrying a different tube-side medium. This allows for simultaneous heat exchange between multiple tube-side media using the shell-side medium, thereby improving thermal efficiency and reducing energy consumption.

[0003] Currently, multi-flow heat exchangers typically include a shell, tube sheets at both ends of the shell, and multiple tube bundles inside the shell. The tube sheets have multiple sets of tube holes corresponding to the multiple tube bundles, and each tube bundle is connected to its corresponding tube hole. However, since the tube sheets are located at the ends of the shell, and in order to increase the sealing between the tube sheets and the shell, an integral tube sheet is generally used. However, due to the small tube distribution area of ​​the tube sheet, the utilization rate of the tube sheet is low, which increases the manufacturing cost of the heat exchanger. At the same time, since the tube sheets are located at the ends of the shell, the shell-side inlet and shell-side outlet need to be located on the side of the shell. This results in a shorter flow path of the shell-side medium in the shell, which affects the contact time between the shell-side medium and the tube bundle, and thus affects the heat exchange efficiency of the heat exchanger. Utility Model Content

[0004] This application provides a tube sheet assembly to reduce the manufacturing cost of heat exchangers and improve their heat exchange efficiency.

[0005] The technical solution adopted in this application is as follows: A tube sheet assembly includes a connector and multiple tube sheets, each tube sheet having a tube hole for connecting a tube bundle. The multiple tube sheets are arranged sequentially along an arrangement direction, and the multiple tube sheets together form a tube bundle support plate. The projected area of ​​the tube bundle support plate along the axial direction of the tube body toward the end of the tube body is smaller than the port area of ​​the end of the tube body, so that the tube bundle support plate can enter the tube body through the port of the end of the tube body. The connector is located between the multiple tube sheets and is used to connect the multiple tube sheets into one unit.

[0006] By adopting the above technical solution, since the tube sheet assembly in this application includes multiple tube sheets, compared with the solution of using an integral tube sheet in the prior art, the size of each tube sheet can be reduced to improve the utilization rate of the tube sheet, thereby reducing the amount of raw materials required when manufacturing the tube sheet assembly, and thus achieving the effect of reducing the manufacturing cost of the tube sheet assembly.

[0007] Since multiple tube sheets together constitute the tube bundle support plate, and the projected area of ​​the tube bundle support plate along the axial direction of the shell towards the end of the shell is smaller than the port area at the end of the shell, the tube bundle support plate can be installed into the interior of the shell through the port at the end of the shell. Furthermore, a gap can be created between the periphery of the tube bundle support plate and the inner wall of the shell for the shell-side medium to flow through. This allows the shell-side inlet and shell-side outlet of the heat exchanger to be located at the end of the shell, thereby increasing the flow path of the shell-side medium in the shell, increasing the contact time between the shell-side medium and the tube bundle, and thus increasing the heat exchange time between the shell-side medium and the tube-side medium, thereby improving the heat exchange efficiency of the heat exchanger equipped with the tube sheet assembly of this application.

[0008] Since the connectors are located between multiple tube sheets and are used to connect multiple tube sheets into one unit, the stability of the tube sheet assembly is increased on the one hand to ensure the working stability of the heat exchanger with the tube sheet assembly of this application installed on the other hand, and it can also facilitate the installation of the tube sheet assembly inside the shell to improve the assembly efficiency of the heat exchanger with the tube sheet assembly of this application installed on the other hand.

[0009] Optionally, the arrangement direction is the direction extending circumferentially along the cylinder; Alternatively, the port of the cylinder has a first direction and a second direction perpendicular to the first direction, the size of the port of the cylinder in the first direction is larger than the size of the port of the cylinder in the second direction, and the arrangement direction is parallel to the first direction.

[0010] By adopting the above technical solution, since the arrangement direction is along the circumferential direction of the cylinder, multiple tube sheets are arranged sequentially along the circumferential direction of the cylinder, thereby making reasonable use of the circumferential space of the cylinder and improving the structural compactness of the heat exchanger with the tube sheet assembly of this application installed.

[0011] Since the arrangement direction is parallel to the first direction of the cylinder port, and for the rectangular cross-sectional shape of the cylinder, multiple tube sheets can be arranged sequentially along the length direction of the cylinder port to make reasonable use of the space in the length direction of the cylinder port, thereby making reasonable use of the internal space of the cylinder, improving the structural compactness of the heat exchanger with the tube sheet assembly of this application and ensuring the heat exchange efficiency of the heat exchanger with the tube sheet assembly of this application.

[0012] Optionally, the connector is a connecting plate, and multiple tube sheets are arranged sequentially along the circumference of the connecting plate, with each tube sheet fixedly connected to the connecting plate.

[0013] By adopting the above technical solution, since the connector is a connecting plate, multiple tube sheets are arranged sequentially along the circumference of the connecting plate. This achieves the goal of connecting multiple tube sheets into one unit using the connector, and also reduces the number of parts required to assemble the tube sheet assembly, thereby improving the assembly efficiency of the tube sheet assembly.

[0014] Optionally, the connecting plate has a receiving notch on its side, and at least a portion of the tube sheet is located in the receiving notch.

[0015] By adopting the above technical solution, since the side of the connecting plate is provided with a receiving notch, at least part of the tube sheet is located in the receiving notch. Thus, on the one hand, the receiving notch can be used to position the tube sheet, so as to facilitate the connection of the tube sheet to the connecting plate. On the other hand, the connection area between the tube sheet and the connecting plate can be increased, so as to increase the connection stability between the tube sheet and the connecting plate.

[0016] Optionally, the connector includes a connecting rod located between two adjacent tube sheets, with both ends of the connecting rod fixedly connected to the two adjacent tube sheets respectively.

[0017] By adopting the above technical solution, since the connecting component includes a connecting rod located between two adjacent tube sheets, and the two ends of the connecting rod are respectively fixedly connected to the two adjacent tube sheets, it is possible to connect multiple tube sheets into one unit on the one hand, and to create a gap between the two adjacent tube sheets for the shell-side medium to pass through on the other hand, thereby improving the heat exchange efficiency of the heat exchanger with the tube sheet assembly of this application installed.

[0018] Optionally, the tube sheet assembly further includes a support member connected to the connector, and the end of the support member is fixedly connected to the inner wall of the cylinder.

[0019] By adopting the above technical solution, since the tube sheet assembly also includes a support member, which is connected to the connector and the end of the support member is fixedly connected to the inner wall of the cylinder, the tube sheet can be fixedly connected to the inner wall of the cylinder through the support member and the connector, thereby increasing the stability of the tube sheet, thereby increasing the stability of the tube bundle, and further increasing the stability of the heat exchanger with the tube sheet assembly of this application installed.

[0020] Optionally, the support member includes a support rod, both ends of which are fixedly connected to the inner wall of the cylinder.

[0021] By adopting the above technical solution, since the support member includes a support rod, both ends of which are fixedly connected to the inner wall of the cylinder, the number of connection points between the support member and the inner wall of the cylinder is increased, thereby increasing the fixing effect of the support member on the tube sheet and further increasing the stability of the heat exchanger with the tube sheet assembly of this application. On the other hand, it ensures that a gap is formed between the periphery of the tube bundle support plate and the inner wall of the cylinder for the shell-side medium to pass through, so that the shell-side inlet and shell-side outlet of the heat exchanger can be located at the end of the cylinder, thus ensuring the flow path of the shell-side medium inside the cylinder and thereby ensuring the heat exchange efficiency of the heat exchanger with the tube sheet assembly of this application.

[0022] Optionally, at least two support rods are provided, and the two support rods are arranged crosswise.

[0023] By adopting the above technical solution, since there are at least two support rods, and the two support rods are arranged in a cross manner, the number of connection points between the support member and the shell is further increased, thereby further increasing the connection stability between the support member and the shell. On the other hand, the number of connection points between the support member and the connecting member is increased, thereby further increasing the connection stability of the tube sheet, and thus further increasing the stability of the heat exchanger with the tube sheet assembly of this application installed.

[0024] Optionally, a gasket is provided at the end of the support rod, and the shape of the gasket is adapted to the shape of the inner wall of the cylinder.

[0025] By adopting the above technical solution, since the end of the support rod is provided with a gasket, the shape of which is adapted to the inner wall shape of the cylinder, thereby increasing the connection area between the support rod and the inner wall of the cylinder, thus increasing the connection stability between the support rod and the cylinder, and further increasing the fixing effect of the support member on the tube sheet, so as to further increase the stability of the heat exchanger with the tube sheet assembly of this application installed.

[0026] This application also provides a heat exchanger to reduce the manufacturing cost of the heat exchanger and improve the heat exchange efficiency of the heat exchanger.

[0027] A heat exchanger includes a shell and a tube sheet assembly as described above, the tube sheet assembly being located inside the shell, and a gap being formed between the periphery of the tube bundle support plate and the inner wall of the shell.

[0028] By adopting the above technical solution, since the heat exchanger in this application uses the tube sheet assembly described above, on the one hand, the utilization rate of the tube sheet is improved, the amount of raw materials required for tube sheet production is reduced, thereby reducing the production cost of the heat exchanger. On the other hand, the shell-side inlet and shell-side outlet can be located at the end of the shell body to increase the flow path of the shell-side medium in the shell body, thereby increasing the heat exchange time between the shell-side medium and the tube bundle, and thus improving the heat exchange efficiency of the heat exchanger.

[0029] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows: 1. The tube sheet assembly in this application includes connectors and multiple tube sheets, each tube sheet having a tube hole for tube bundle connection. The multiple tube sheets are arranged sequentially along the arrangement direction, and the multiple tube sheets together constitute a tube bundle support plate. The projected area of ​​the tube bundle support plate along the axial direction of the shell towards the end of the shell is smaller than the port area of ​​the end of the shell, so that the tube bundle support plate can enter the shell through the port of the end of the shell. The connectors are located between the multiple tube sheets and are used to connect the multiple tube sheets into one unit. This allows the tube sheet assembly to be installed inside the shell, so that the shell-side inlet and shell-side outlet can be located at the end of the shell, thereby increasing the flow path of the shell-side medium in the shell, thereby increasing the heat exchange time between the shell-side medium and the tube-side medium, and thus improving the heat exchange efficiency of the heat exchanger. On the other hand, it improves the utilization rate of the tube sheets, thereby reducing the amount of raw materials required when producing the tube sheets, and thus reducing the production cost of the tube sheet assembly, thereby reducing the production cost of the heat exchanger with the tube sheet assembly installed in this application.

[0030] 2. In this application, the connector is a connecting plate, and multiple tube sheets are arranged sequentially along the circumference of the connecting plate, and each tube sheet is fixedly connected to the connecting plate. Thus, on the one hand, multiple tube sheets are connected into one unit by using the connector, and on the other hand, the number of parts required to be assembled when assembling the tube sheet assembly is reduced, thereby improving the assembly efficiency of the tube sheet assembly.

[0031] 3. The connecting plate in this application has a receiving notch on its side, and at least part of the tube sheet is located in the receiving notch. This notch can be used to position the tube sheet to facilitate connecting the tube sheet to the connecting plate. In addition, it can increase the connection area between the tube sheet and the connecting plate to increase the connection stability between the tube sheet and the connecting plate. Attached Figure Description

[0032] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the tube sheet assembly described in one embodiment of this application. The dashed arrows in the figure indicate the arrangement direction, mainly showing that the arrangement direction extends along the circumference of the cylinder. Figure 2 This is a schematic diagram of the tube sheet assembly described in one embodiment of this application from another perspective. Figure 3 This is a schematic diagram of the structure of the connector described in one embodiment of this application; Figure 4This is a cross-sectional view of the heat exchanger described in one embodiment of this application. The dotted lines in the figure represent the outer contour of the tube bundle. Figure 5 This is a cross-sectional view from another perspective of the heat exchanger described in one embodiment of this application; Figure 6 This is a cross-sectional view of the heat exchanger described in another embodiment of this application, where the dotted lines represent the outer contour of the tube bundle. Figure 7 This is a partial structural cross-sectional view of the heat exchanger described in another embodiment of this application.

[0033] Figure label: 1. Connector; 11. Accommodation notch; 2. Tube sheet; 22. End cap; 221. Tube body; 21. Tube hole; 3. Support; 31. Gasket; 4. Cylinder; 41. Tube bundle; 5. Integral tube sheet. Detailed Implementation

[0034] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0035] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0036] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0037] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "implementation," "example," "a particular embodiment," "example," or "specific example," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0039] Reference Figures 1 to 3 A tube sheet assembly is disclosed, which includes a connector 1 and multiple tube sheets 2. Each tube sheet 2 has a tube hole 21 for connecting to a tube bundle 41. The multiple tube sheets 2 are arranged sequentially along the arrangement direction, and the multiple tube sheets 2 together constitute a tube bundle support plate. The projected area of ​​the tube bundle support plate along the axial direction of the cylinder 4 toward the end of the cylinder 4 is smaller than the port area of ​​the end of the cylinder 4, so that the tube bundle support plate can enter the cylinder 4 through the port of the end of the cylinder 4. The connector 1 is located between the multiple tube sheets 2 and is used to connect the multiple tube sheets 2 into one unit.

[0040] It is understandable that the tube sheet assembly is installed inside the cylinder 4, and the projection of the tube bundle support plate along the axial direction of the cylinder 4 toward the end of the cylinder 4 is located inside the port at the end of the cylinder 4.

[0041] Since the tube sheet assembly in this application includes multiple tube sheets 2, compared with the solution of using an integral tube sheet 5 in the prior art, the size of each tube sheet 2 can be reduced to improve the utilization rate of the tube sheet 2, thereby reducing the amount of raw materials required when manufacturing the tube sheet assembly, and thus achieving the effect of reducing the manufacturing cost of the tube sheet assembly.

[0042] Since multiple tube sheets 2 together constitute the tube bundle support plate, and the projected area of ​​the tube bundle support plate along the axial direction of the cylinder 4 toward the end of the cylinder 4 is smaller than the port area at the end of the cylinder 4, the tube bundle support plate can be installed into the interior of the cylinder 4 through the port at the end of the cylinder 4. Furthermore, a gap can be formed between the periphery of the tube bundle support plate and the inner wall of the cylinder 4 for the shell-side medium to flow through. This allows the shell-side inlet and shell-side outlet of the heat exchanger to be located at the end of the cylinder 4, thereby increasing the flow path of the shell-side medium in the cylinder 4, increasing the contact time between the shell-side medium and the tube bundle 41, and thus increasing the heat exchange time between the shell-side medium and the tube-side medium, thereby improving the heat exchange efficiency of the heat exchanger equipped with the tube sheet assembly of this application.

[0043] Since the connector 1 is located between multiple tube sheets 2 and is used to connect multiple tube sheets 2 into one unit, it increases the stability of the tube sheet assembly to ensure the working stability of the heat exchanger with the tube sheet assembly of this application installed. On the other hand, it also facilitates the installation of the tube sheet assembly inside the shell 4 to improve the assembly efficiency of the heat exchanger with the tube sheet assembly of this application installed.

[0044] This application does not specify a particular arrangement direction, and it can adopt any of the following embodiments: Implementation Method 1, in this implementation method, refer to Figure 1 and Figure 2 The arrangement direction is along the circumferential direction of the cylinder 4.

[0045] It is understandable that the cylinder 4 has a circular cross-sectional shape, and multiple tube sheets 2 are arranged sequentially along the circumference of the cylinder 4, and the plane in which the multiple tube sheets 2 are located is perpendicular to the central axis of the cylinder 4.

[0046] Since the arrangement direction is along the circumference of the cylinder 4, multiple tube sheets 2 are arranged sequentially along the circumference of the cylinder 4, thereby making reasonable use of the circumferential space of the cylinder 4 and improving the structural compactness of the heat exchanger with the tube sheet assembly of this application installed.

[0047] In the second embodiment, the port of the cylinder 4 has a first direction and a second direction perpendicular to the first direction. The size of the port of the cylinder 4 in the first direction is larger than the size of the port of the cylinder 4 in the second direction, and the arrangement direction is parallel to the first direction.

[0048] It is understood that the cylinder 4 has a rectangular cross-sectional shape, the first direction is the length direction of the cylinder 4 port, the second direction is the width direction of the cylinder 4 port, the arrangement direction is parallel to the length direction of the cylinder 4 port, and the plane on which the multiple tube sheets 2 are located is perpendicular to the central axis of the cylinder 4.

[0049] Since the arrangement direction is parallel to the first direction of the cylinder 4 port, and given that the cylinder 4 has a rectangular cross-sectional shape, multiple tube sheets 2 can be arranged sequentially along the length direction of the cylinder 4 port to make reasonable use of the space in the length direction of the cylinder 4 port. This allows for the rational use of the internal space of the cylinder 4, thereby improving the structural compactness of the heat exchanger with the tube sheet assembly of this application and ensuring the heat exchange efficiency of the heat exchanger with the tube sheet assembly of this application.

[0050] Of course, in other embodiments, when the cross-sectional shape of the cylinder 4 is circular, the arrangement direction can also be perpendicular to the central axis of the cylinder 4, that is, multiple tube sheets 2 are arranged sequentially along the radial direction of the cylinder 4; when the cross-sectional shape of the cylinder 4 is rectangular, the arrangement direction can also be along the circumferential direction of the cylinder 4, that is, multiple tube sheets 2 are arranged sequentially along the circumferential direction of the cylinder 4; or, at least one tube sheet 2 is not coplanar with other tube sheets 2.

[0051] This application does not impose specific limitations on the structure of connector 1, which can adopt any of the following embodiments: Implementation Method 1, in this implementation method, refer to Figures 1 to 3 The connector 1 is a connecting plate, and multiple tube sheets 2 are arranged sequentially along the circumference of the connecting plate, and each tube sheet 2 is fixedly connected to the connecting plate.

[0052] Since connector 1 is a connecting plate, multiple tube sheets 2 are arranged sequentially along the circumference of the connecting plate. This achieves the goal of connecting multiple tube sheets 2 into one unit using connector 1, and also reduces the number of parts required to assemble the tube sheet assembly, thereby improving the assembly efficiency of the tube sheet assembly.

[0053] Furthermore, refer to Figures 1 to 3 The connecting plate has a receiving notch 11 on its side, and at least a portion of the tube sheet 2 is located in the receiving notch 11.

[0054] It is understood that the number of receiving notches 11 is the same as the number of tube sheets 2 and the two are set one-to-one. The shape of each receiving notch 11 is adapted to the shape of its corresponding tube sheet 2, and a part of the outer peripheral surface of the tube sheet 2 contacts the opening wall of the receiving notch 11.

[0055] Since the connecting plate has a receiving notch 11 on its side, at least part of the tube sheet 2 is located in the receiving notch 11. This allows the tube sheet 2 to be positioned using the receiving notch 11, making it easier to connect the tube sheet 2 to the connecting plate. It also increases the connection area between the tube sheet 2 and the connecting plate, thereby increasing the connection stability between the tube sheet 2 and the connecting plate.

[0056] This application does not specify a particular method for fixing the tube sheet 2 to the connecting plate. Preferably, the tube sheet 2 is fixedly connected to the connecting plate by welding to increase the connection stability between the tube sheet 2 and the connecting plate. In other embodiments, the tube sheet 2 can also be fixed to the connecting plate by bolts or screws.

[0057] Preferably, the thickness of the connecting plate is less than the thickness of the tube sheet 2, so as to further reduce the manufacturing cost of the tube sheet assembly, and thus further reduce the manufacturing cost of the heat exchanger with the tube sheet assembly of this application installed.

[0058] In the second embodiment, the connector 1 includes a connecting rod located between two adjacent tube sheets 2, with both ends of the connecting rod fixedly connected to the two adjacent tube sheets 2 respectively.

[0059] It is understandable that there are multiple connecting rods, with each connecting rod located between two adjacent tube sheets 2 in each group.

[0060] Since the connector 1 includes a connecting rod located between two adjacent tube sheets 2, with both ends of the connecting rod fixedly connected to the two adjacent tube sheets 2 respectively, it achieves the integration of multiple tube sheets 2 into one unit on the one hand, and on the other hand, it creates a gap between the two adjacent tube sheets 2 for the shell-side medium to pass through, thereby improving the heat exchange efficiency of the heat exchanger equipped with the tube sheet assembly of this application.

[0061] This application does not specify a particular method for fixing the connecting rod to the tube sheet 2. Preferably, both ends of the connecting rod are fixedly connected to two adjacent tube sheets 2 by welding to increase the connection stability between the connecting rod and the tube sheet 2. In other embodiments, the connecting rod can also be fixedly connected to the tube sheet 2 by bolts or screws.

[0062] In the third embodiment, each tube sheet 2 has an extension portion extending from its edge. Adjacent tube sheets 2 are welded together through the extension portions, so that the extension portions on multiple tube sheets 2 together constitute the connector 1, thereby further reducing the number of parts required to assemble the tube sheet assembly and further improving the assembly efficiency of the tube sheet assembly; or, the connector 1 includes multiple rod-shaped structures, the number of rod-shaped structures corresponding one-to-one with the number of tube sheets 2, and the multiple rod-shaped structures intersect and are fixedly connected to a point, with the outer end of each rod-shaped structure fixedly connected to its corresponding tube sheet 2.

[0063] This application does not specifically limit the structure of the extension, which can be a ring structure extending circumferentially along the tube sheet 2, or a block structure extending radially along the tube sheet 2.

[0064] In a preferred embodiment, refer to Figure 1 and Figure 2 The tube sheet assembly also includes a support 3, which is connected to the connector 1, and the end of the support 3 is fixedly connected to the inner wall of the cylinder 4.

[0065] It is understandable that the tube sheet 2 is connected to the inner wall of the cylinder 4 through the connector 1 and the support 3.

[0066] Since the tube sheet assembly also includes a support member 3, which is connected to the connector 1 and whose end is fixedly connected to the inner wall of the cylinder 4, the tube sheet 2 can be fixedly connected to the inner wall of the cylinder 4 through the support member 3 and the connector 1, thereby increasing the stability of the tube sheet 2, which in turn increases the stability of the tube bundle 41, and further increases the stability of the heat exchanger on which the tube sheet assembly of this application is installed. In addition, by connecting the support member 3 to the connector 1, the support member 3 can also avoid the tube bundle 41 connected to the tube sheet 2 or the end cap 22 used to seal the tube sheet 2, thereby facilitating the installation of the tube bundle 41 or the end cap 22.

[0067] This application does not specifically limit the structure of the support member 3. Preferably, the support member 3 includes a support rod, both ends of which are fixedly connected to the inner wall of the cylinder 4.

[0068] It is understandable that the middle position of the support rod along its length is connected to connector 1.

[0069] Since the support member 3 includes a support rod, both ends of which are fixedly connected to the inner wall of the cylinder 4, the number of connection points between the support member 3 and the inner wall of the cylinder 4 is increased, thereby increasing the fixing effect of the support member 3 on the tube sheet 2. This further increases the stability of the heat exchanger with the tube sheet assembly of this application installed. On the other hand, it ensures that a gap is formed between the periphery of the tube bundle support plate and the inner wall of the cylinder 4 for the shell-side medium to pass through, so that the shell-side inlet and shell-side outlet of the heat exchanger can be located at the end of the cylinder 4, thus ensuring the flow path of the shell-side medium inside the cylinder 4 and thereby ensuring the heat exchange efficiency of the heat exchanger with the tube sheet assembly of this application installed.

[0070] This application does not impose specific limitations on the structure of the support rod. Preferably, the support rod is a tubular structure with a square cross-section to increase the connection area between the support rod and the connector 1, thereby increasing the connection stability between the support rod and the connector 1, and further ensuring the connection stability between the tube bundle 41 assembly and the cylinder 4. In other embodiments, the support rod may also be a hollow or solid rod-shaped structure with a circular cross-section.

[0071] Furthermore, refer to Figure 1 and Figure 2 At least two support rods are provided, and the two support rods are arranged in a cross manner, which further increases the connection points between the support member 3 and the cylinder 4, thereby further increasing the connection stability between the support member 3 and the cylinder 4. On the other hand, it increases the connection points between the support member 3 and the connector 1, thereby further increasing the connection stability of the tube sheet 2, and further increasing the stability of the heat exchanger with the tube sheet assembly of this application installed.

[0072] Preferably, there are two support rods, one of which is divided into two sections, and the two sections are located opposite each other on the other support rod. That is, the two support rods together form a "+" shape, so that both support rods can be connected to the connector 1, thereby increasing the connection stability between the support 3 and the connector 1.

[0073] Furthermore, refer to Figure 1 and Figure 2 The end of the support rod is provided with a gasket 31, the shape of which is adapted to the inner wall shape of the cylinder 4.

[0074] It is understandable that the end face area of ​​the gasket 31 is larger than the end face area of ​​the support rod. One end face of the gasket 31 is fixedly connected to the support rod, and the other end face of the gasket 31 is fixedly connected to the inner wall of the cylinder 4.

[0075] Because the end of the support rod is provided with a gasket 31, the shape of which is adapted to the inner wall shape of the cylinder 4, thereby increasing the connection area between the support rod and the inner wall of the cylinder 4, thus increasing the connection stability between the support rod and the cylinder 4, and further increasing the fixing effect of the support member 3 on the tube sheet 2, so as to further increase the stability of the heat exchanger with the tube sheet assembly of this application installed; at the same time, it can also reduce the pressure between the end of the support rod and the inner wall of the cylinder 4, so as to ensure the service life of the cylinder 4.

[0076] This application does not specify the method of fixing the gasket 31 to the support rod and the inner wall of the cylinder 4. Preferably, the gasket 31 is fixedly connected to the support rod and the inner wall of the cylinder 4 by welding to increase the connection stability between the gasket 31 and the support rod and the cylinder 4, thereby further increasing the stability of the tube sheet assembly. In other embodiments, the gasket 31 can also be fixed to the inner wall of the cylinder 4 and the support rod by bolts or screws.

[0077] This application does not specify the connection method between the support rod and the connector 1. Preferably, the support rod is fixedly connected to the connector 1 by welding to increase the connection stability between the support member 3 and the connector 1, thereby increasing the connection stability between the tube sheet assembly and the cylinder 4. In other embodiments, the support member 3 may simply contact the connector 1, and the support member 3 may be located at the bottom of the connector 1; or, the support member 3 may be fixedly connected to the tube sheet 2 by bolts or screws.

[0078] In other embodiments, the support member 3 may also be a rod-shaped structure or a block-shaped structure whose two ends are respectively fixedly connected to the connector 1 and the inside of the cylinder 4; or, the number of support rods may be two, and multiple support rods may be used to form other shapes such as a "well" shape or a "rice" shape.

[0079] Reference Figures 4 to 7This application also discloses a heat exchanger including a shell 4 and a tube sheet assembly as described above, the tube sheet assembly being located inside the shell 4, and a gap being formed between the periphery of the tube bundle support plate and the inner wall of the shell 4.

[0080] It is understood that the heat exchanger also includes tube bundles 41 located inside the shell 4. Multiple sets of tube bundles 41 are provided and are arranged one-to-one with tube sheets 2. Each set of tube bundles 41 is connected to the corresponding tube hole 21 of the tube sheet 2.

[0081] Since the heat exchanger in this application uses the tube sheet assembly described above, on the one hand, the utilization rate of the tube sheet 2 is improved, and the amount of raw materials required for the production of the tube sheet 2 is reduced, thereby reducing the production cost of the heat exchanger. On the other hand, the shell-side inlet and shell-side outlet can be located at the end of the shell body 4 to increase the flow path of the shell-side medium in the shell body 4, thereby increasing the heat exchange time between the shell-side medium and the tube bundle 41, and thus improving the heat exchange efficiency of the heat exchanger.

[0082] This application does not impose a specific limit on the number of tube sheet assemblies, which can be implemented using any of the following embodiments: Implementation Method 1, in this implementation method, refer to Figure 4 One end of the top of the cylindrical body 4 is fixedly connected to an integral tube sheet 5. The integral tube sheet 5 has multiple sets of perforated structures corresponding to multiple sets of tube bundles 41. The tube sheet assembly has one set located at the bottom of the integral tube sheet 5. One end of each set of tube bundles 41 is connected to a tube hole 21 on its corresponding tube sheet 2, and the other end of each set of tube bundles 41 is connected to a perforated structure on its corresponding integral tube sheet 5. The side of the cylindrical body 4 is provided with a shell-side inlet located between the integral tube sheet 5 and the tube sheet assembly, and the bottom of the cylindrical body 4 is provided with a shell-side inlet located at the bottom of the tube sheet assembly. The outlet is designed to increase the flow path of the shell-side medium in the shell 4 to a certain extent, thereby increasing the heat exchange time between the shell-side medium and the tube-side medium, and thus improving the heat exchange efficiency of the heat exchanger. The bottom of the tube sheet assembly is provided with multiple end caps 22, which are arranged one-to-one with the tube sheet 2. Each end cap 22 is fixedly connected to its corresponding tube sheet 2. Each end cap 22 is provided with a bent tube body 221. One end of the tube body 221 extends from the side of the shell 4 to the outside of the shell 4 so that the tube body 221 avoids the shell-side outlet.

[0083] In this embodiment, preferably, the support member 3 is located at the bottom of the connector 1. On the one hand, the support member 3 can be used to support the bottom of the connector 1 to increase the connection stability between the tube sheet assembly and the cylinder 4. On the other hand, it can also facilitate the fixing of the support member 3.

[0084] Implementation Method Two: In this implementation method, refer to... Figure 6There are two sets of tube sheet assemblies, both located inside the shell 4 and at both ends of the tube bundle 41. The two ends of each tube bundle 41 are connected to the tube sheet 2 on their respective tube sheet assemblies. Multiple end caps 22 are provided on the opposite side of each set of tube sheet assemblies. The multiple end caps 22 are provided one-to-one with the tube sheet 2, and each end cap 22 is fixedly connected to its corresponding tube sheet 2. Each end cap 22 is provided with a bent tube body 221. One end of the tube body 221 extends from the side of the shell 4 to the outside of the shell 4. The two ends of the shell 4 form a shell-side inlet and a shell-side outlet, respectively, to increase the flow path of the shell-side medium in the shell 4, thereby increasing the heat exchange time between the shell-side medium and the tube-side medium, and thus improving the heat exchange efficiency of the heat exchanger.

[0085] In this embodiment, preferably, the support members 3 of the two sets of tube sheet assemblies are located on opposite sides of the two sets of tube sheet assemblies, so as to facilitate the fixing of the support members 3.

[0086] This application does not specifically limit the structure of the tube bundle 41. Preferably, the tube bundle 41 is a coiled tube bundle to increase the flow path of the tube-side medium in the tube bundle 41, thereby increasing the heat exchange time between the shell-side medium and the tube-side medium, and further increasing the heat exchange efficiency of the heat exchanger. In other embodiments, the tube bundle 41 may also be an in-line tube bundle.

[0087] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0088] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0089] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A tube sheet assembly, characterized in that, The assembly includes a connector (1) and multiple tube sheets (2). Each tube sheet (2) has a tube hole (21) for connecting to the tube bundle (41). The multiple tube sheets (2) are arranged sequentially along the arrangement direction, and the multiple tube sheets (2) together constitute a tube bundle support plate. The projected area of ​​the tube bundle support plate along the axial direction of the cylinder (4) toward the end of the cylinder (4) is smaller than the port area of ​​the end of the cylinder (4), so that the tube bundle support plate can enter the cylinder (4) through the port of the end of the cylinder (4). The connector (1) is located between the multiple tube sheets (2) and is used to connect the multiple tube sheets (2) into one unit.

2. A tube sheet assembly according to claim 1, characterized in that, The arrangement direction is the direction that extends circumferentially along the cylinder (4); Alternatively, the port of the cylinder (4) has a first direction and a second direction perpendicular to the first direction, the size of the port of the cylinder (4) in the first direction is larger than the size of the port of the cylinder (4) in the second direction, and the arrangement direction is set parallel to the first direction.

3. A tube sheet assembly according to claim 1, characterized in that, The connector (1) is a connecting plate, and multiple tube plates (2) are arranged sequentially along the circumference of the connecting plate, and each tube plate (2) is fixedly connected to the connecting plate.

4. A tube sheet assembly according to claim 3, characterized in that, The connecting plate has a receiving notch (11) on its side, and at least a portion of the tube sheet (2) is located in the receiving notch (11).

5. A tube sheet assembly according to claim 1, characterized in that, The connector (1) includes a connecting rod located between two adjacent tube sheets (2), with both ends of the connecting rod fixedly connected to the two adjacent tube sheets (2).

6. A tube sheet assembly according to any one of claims 1-5, characterized in that, The tube sheet assembly also includes a support member (3), which is connected to the connector (1), and the end of the support member (3) is fixedly connected to the inner wall of the cylinder (4).

7. A tube sheet assembly according to claim 6, characterized in that, The support member (3) includes a support rod, both ends of which are fixedly connected to the inner wall of the cylinder (4).

8. A tube sheet assembly according to claim 7, characterized in that, At least two support rods are provided, and the two support rods are arranged in a cross manner.

9. A tube sheet assembly according to claim 7, characterized in that, The end of the support rod is provided with a gasket (31), the shape of which is adapted to the inner wall shape of the cylinder (4).

10. A heat exchanger, characterized in that, It includes a cylinder (4) and a tube sheet assembly as described in any one of claims 1-9, the tube sheet assembly being located inside the cylinder (4), and a gap being formed between the periphery of the tube bundle support plate and the inner wall of the cylinder (4).

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